1.
This is a _____________________ angle.
Explanation
A straight angle is formed when two lines are opposite and create a straight line. It measures 180 degrees. The answer includes variations of the term "straight angle," with both lowercase and uppercase letters, indicating that any form of the term is acceptable.
2.
This is an __________________ angle.
Explanation
An acute angle is an angle that measures less than 90 degrees. It is denoted by the symbol "
3.
This is a __________________ .
Explanation
The given correct answer options, "full turn," "revolution," "360 degrees," and "360," all refer to a complete rotation or circular movement. These terms indicate a complete cycle or a 360-degree angle, which signifies a full revolution or a complete rotation around a point. Therefore, any of these options can be used to describe the given statement.
4.
This is a _____________________ angle.
Explanation
The correct answer is "right angle." A right angle is a 90-degree angle, formed by two perpendicular lines. It is denoted by a small square at the vertex of the angle. The other options (rite, right, Right) do not have any specific geometric meaning and are not related to angles.
5.
This is a _________________ angle
Explanation
A reflex angle is an angle that measures greater than 180 degrees but less than 360 degrees. It is formed by extending one of the sides of an angle beyond a straight line. In this case, the term "reflex angle" is repeated four times with different capitalizations, indicating that all variations are correct.
6.
I have 4 equal sides and 4 equal angles. I’m a _______________.
Explanation
A square is a shape that has 4 equal sides and 4 equal angles. Each side of a square is the same length, and all angles inside the square are 90 degrees. Therefore, a square fits the description given in the question.
7.
I have 6 sides and 6 angles. My angle sum is 720Ëš. I’m a _____________.
Explanation
A hexagon is a polygon with 6 sides and 6 angles. The sum of the angles in a hexagon is always 720Ëš. Therefore, the correct answer is hexagon.
8.
I’m a quadrilateral. Both pairs of opposite sides are parallel. I’m a ________________.
Explanation
A quadrilateral with both pairs of opposite sides parallel can be any of the given options: rhombus, parallelogram, square, or rectangle. A rhombus is a quadrilateral with all sides equal in length, a parallelogram has opposite sides parallel and equal in length, a square is a special type of parallelogram with all sides equal in length and all angles equal to 90 degrees, and a rectangle is a parallelogram with all angles equal to 90 degrees. Therefore, any of these options can be the correct answer.
9.
Use the clues to name this mystery quadrilateral:
1 My opposite sides are parallel.
2 All my sides are of equal length.
3 All 4 interior angles are right angles.
4 If you draw in my diagonals, right angles
are formed at the intersection.
Explanation
The given clues describe the properties of a square. A square is a quadrilateral with opposite sides that are parallel, all sides of equal length, and all interior angles that are right angles. When the diagonals of a square are drawn, they intersect at right angles. Therefore, the correct answer is "a square."
10.
Does this shape have rotational symmetry?
Correct Answer
A. Yes
Explanation
This shape has rotational symmetry because it can be rotated by a certain angle and still look the same.
11.
Questions 11-Does this shape have rotational symmetry?
Correct Answer
B. No
Explanation
The shape does not have rotational symmetry because rotational symmetry occurs when a shape can be rotated by a certain angle and still look the same. In this case, the shape does not have any rotational symmetry as it does not have any rotational axis or point around which it can be rotated to match its original form.
12.
Does this shape have rotational symmetry?
Correct Answer
B. No
Explanation
This shape does not have rotational symmetry because it cannot be rotated by any angle and still look the same.
13.
Does this shape have rotational symmetry?
Correct Answer
A. Yes
Explanation
This shape has rotational symmetry because it can be rotated by a certain angle and still appear the same.
14.
This 3D shape is a _________________ ________________.
Correct Answer
pentagonal pyramid
Explanation
A pentagonal pyramid is a 3D shape that has a pentagonal base and five triangular faces that meet at a single point called the apex. In this case, the given answer correctly identifies the shape as a pentagonal pyramid.
15.
This 3D shape is a _________________ ________________.
Correct Answer
rectangular prism
Explanation
A rectangular prism is a three-dimensional shape that has six rectangular faces. Each face is a rectangle and all the angles are right angles. The term "rectangular" indicates that the shape has equal opposite sides and "prism" refers to its three-dimensional nature. Therefore, the given correct answer, "rectangular prism," accurately describes the shape being referred to.
16.
This 3D shape is a _________________ ________________.
Correct Answer
square pyramid
rectangular pyramid
Explanation
A square pyramid is a three-dimensional shape with a square base and triangular faces that meet at a single point called the apex. A rectangular pyramid, on the other hand, has a rectangular base and triangular faces that also meet at a single apex. Both of these shapes are characterized by their base shape and the arrangement of their faces, making them the correct answers for this question.
17.
These lines are ___________________________.
Correct Answer
parallel
parralel
paralel
18.
These lines are ___________________________.
Correct Answer
perpendicular
Perpendicular
Explanation
The given correct answer for this question is "perpendicular". The word "perpendicular" describes the lines mentioned in the given statement. The repetition of the word in both lowercase and uppercase suggests that it is the correct answer.
19.
Choose the closest measurement for this angle.
Correct Answer
C. 335
Explanation
The closest measurement for the angle is 335.
20.
What is the angle sum of this shape?
Correct Answer
540
540 degrees
21.
If the radius of a circle is 8cm, what is its diameter?
Correct Answer
16cm
16 cm
16
16centimetres
16 centimetres
Explanation
The diameter of a circle is twice the length of its radius. Therefore, if the radius of a circle is 8cm, its diameter would be 16cm.
22.
Name this type of triangle
Correct Answer
A. Scalene
Explanation
A scalene triangle is a type of triangle in which all three sides have different lengths. This is different from an isosceles triangle, where two sides have the same length, and an equilateral triangle, where all three sides have the same length. A right angle triangle is a triangle that has one angle equal to 90 degrees.
23.
Name this type of triangle
Correct Answer
B. Isosceles
Explanation
An isosceles triangle is a type of triangle that has two sides of equal length. In this triangle, two of the sides are the same length, while the third side is a different length. This type of triangle is known for having two equal angles opposite the equal sides.
24.
Name this type of triangle
Correct Answer
D. Right angle
Explanation
A right angle triangle is a type of triangle that has one angle measuring exactly 90 degrees. In a right angle triangle, the side opposite the right angle is called the hypotenuse, while the other two sides are known as the legs. This type of triangle is often used in geometry and trigonometry to solve various mathematical problems and is characterized by its unique angle measurement.
25.
Name this type of triangle
Correct Answer
C. Equilateral
Explanation
An equilateral triangle is a type of triangle where all three sides are equal in length. This means that all angles in an equilateral triangle are also equal, measuring 60 degrees each. This type of triangle is characterized by its symmetry and balance, and it is often used in geometric constructions and calculations.
26.
6 faces 10 edges 6 corners
These are the properties of which 3D object?
Correct Answer
C. Pentagonal pyramid
Explanation
A pentagonal pyramid has 6 faces, 10 edges, and 6 corners. A pentagonal pyramid is a 3D object with a pentagonal base and triangular faces that converge at a single point called the apex. The given properties match those of a pentagonal pyramid, making it the correct answer.
27.
How many cubes are there in this stack. There are no hidden cubes only the ones that you can see.
Correct Answer
24
28.
Which is the side view of the stack?
Correct Answer
c
C
Explanation
The side view of the stack can be represented by the letter "c" or "C".
29.
How many pentominoes are in this picture?
Correct Answer
12
12 pentominoes
Explanation
The answer is 12 because there are 12 pentominoes in the picture.