# STD - 4 , Maths , Geometrical Figures

Approved & Edited by ProProfs Editorial Team
The editorial team at ProProfs Quizzes consists of a select group of subject experts, trivia writers, and quiz masters who have authored over 10,000 quizzes taken by more than 100 million users. This team includes our in-house seasoned quiz moderators and subject matter experts. Our editorial experts, spread across the world, are rigorously trained using our comprehensive guidelines to ensure that you receive the highest quality quizzes.
S
Community Contributor
Quizzes Created: 1 | Total Attempts: 206
Questions: 20 | Attempts: 206  Settings  Asst. Teacher
ZPPS Kharepatan Rameshwarnagar

• 1.

### What is the name of this figure?

• A.

Rectangle

• B.

Triangle

• C.

Circle

• D.

Square

B. Triangle
Explanation
The figure in question is a triangle because it has three sides and three angles. A triangle is a polygon with three straight sides and three vertices.

Rate this question:

• 2.

### What is the name of this figure?

• A.

Circle

• B.

Triangle

• C.

Rectangle

• D.

Square

C. Rectangle
Explanation
The figure in question is a rectangle. A rectangle is a four-sided shape with opposite sides that are equal in length and four right angles. It can be identified by its straight sides and right angles.

Rate this question:

• 3.

### What is the name of this figure?

• A.

Circle

• B.

Square

• C.

Rectangle

• D.

Triangle

B. Square
Explanation
The figure shown in the question is a square. A square is a quadrilateral with four equal sides and four right angles. It is a special type of rectangle, where all sides are equal in length. The figure in the question has four equal sides and four right angles, hence it is a square.

Rate this question:

• 4.

### Which is this figure?

• A.

Circle

• B.

Square

• C.

Triangle

• D.

Rectangle

A. Circle
Explanation
This figure is a circle because it is a closed shape with all points on its boundary equidistant from its center. It does not have any straight sides or angles like a square, triangle, or rectangle.

Rate this question:

• 5.

### Which angle is this ?

• A.

Acute angle

• B.

Obtuse angle

• C.

Right angle

B. Obtuse angle
Explanation
The given answer, "Obtuse angle," is correct because an obtuse angle is any angle that measures more than 90 degrees but less than 180 degrees. Since the question does not provide any specific measurements or context, it is impossible to determine the exact measure of the angle. However, based on the options provided, it can be inferred that the angle in question is not a right angle (which measures exactly 90 degrees) or an acute angle (which measures less than 90 degrees). Therefore, the only remaining option is an obtuse angle.

Rate this question:

• 6.

### What is the name of this angle ?

• A.

Right angle

• B.

Acute angle

• C.

Obtuse angle

A. Right angle
Explanation
A right angle is formed when two lines intersect and create a 90-degree angle. The name "right angle" comes from the fact that it is the angle that is "right" or perpendicular to a given line. It is called a right angle because it divides a full 360-degree circle into four equal parts, each measuring 90 degrees. In a right angle, one side is vertical or upright, while the other side is horizontal or flat. This angle is commonly found in squares, rectangles, and other geometric shapes.

Rate this question:

• 7.

### Which angle is this ?

• A.

Obtuse angle

• B.

Right angle

• C.

Acute angle

C. Acute angle
Explanation
An acute angle is an angle that measures less than 90 degrees. In this case, since there is no specific measurement mentioned, we can assume that the angle is less than 90 degrees, making it an acute angle.

Rate this question:

• 8.

### How many rectangles are there in the given picture?

• A.

5

• B.

3

• C.

1

• D.

2

B. 3
Explanation
The given picture contains three rectangles.

Rate this question:

• 9.

### How many squares are there in the given picture?

• A.

1

• B.

2

• C.

3

• D.

4

B. 2
Explanation
In the given picture, there are two squares. One square is formed by the four small squares at the top left corner, and the other square is formed by the four small squares at the bottom right corner. Therefore, the correct answer is 2.

Rate this question:

• 10.

### How many circles are there in the given picture?

• A.

3

• B.

4

• C.

2

• D.

1

A. 3
Explanation
In the given picture, there are three circles. One circle is formed by the outer edge of the picture, another circle is formed by the inner edge of the picture, and the last circle is formed by the dot in the center of the picture. Therefore, the correct answer is 3.

Rate this question:

• 11.

### How many triangles are there in the given picture?

• A.

4

• B.

2

• C.

3

• D.

5

C. 3
Explanation
The correct answer is 3 because there are three distinct triangles visible in the given picture.

Rate this question:

• 12.

### A triangle has ________ corners.

3, three
Explanation
A triangle has three corners because it is a polygon with three sides. Each side of a triangle connects to two other sides, forming three corners where the sides meet. Therefore, a triangle always has three corners.

Rate this question:

• 13.

### A rectangle has ________ sides.

4, four
Explanation
A rectangle has four sides. This is because a rectangle is a quadrilateral with four straight sides and four right angles. The opposite sides of a rectangle are equal in length, and the adjacent sides are perpendicular to each other. Therefore, a rectangle is defined by having four sides.

Rate this question:

• 14.

### What are vertices?

• A.

Sides

• B.

Angles

• C.

Faces

• D.

Corners

D. Corners
Explanation
Vertices are the points where the sides of a shape or object meet. They are commonly referred to as corners. In geometric shapes, such as polygons or polyhedra, vertices are the points where the edges intersect. Each vertex represents a specific point of connection or intersection, and the number of vertices determines the overall shape and structure of the object. Therefore, corners is the correct answer as it accurately defines what vertices are in relation to shapes and objects.

Rate this question:

• 15.

### Which shape has three sides?

• A.

Square

• B.

Triangle

• C.

Rectangle

• D.

Circle

B. Triangle
Explanation
A triangle has three sides. A square has four sides, a rectangle has four sides, and a circle has no sides because it is a curved shape. Therefore, the shape with three sides is a triangle.

Rate this question:

• 16.

### Which shape has no corners?

• A.

Triangle

• B.

Circle

• C.

Square

• D.

Rectangle

B. Circle
Explanation
A circle has no corners because it is a perfectly round shape. Unlike the other options, a circle does not have any straight sides or angles that would create corners. Instead, it is a continuous curve with no distinct points. This makes it the only shape among the given options that does not have any corners.

Rate this question:

• 17.

### The point in this circle is called________.

Centre
Explanation
The point in this circle is called the center. The center is the point that is equidistant from all points on the circumference of the circle. It is the point around which the circle is symmetrical and can be used as a reference point for various calculations and measurements involving the circle.

Rate this question:

• 18.

### The line in this circle is called________.

Explanation
The line in a circle that connects the center of the circle to any point on its circumference is called the radius.

Rate this question:

• 19.

### The line in this circle is called________.

Diameter
Explanation
The line in a circle that passes through the center and divides the circle into two equal halves is called the diameter. It is the longest chord in a circle and is twice the length of the radius.

Rate this question:

• 20.

### The line in this circle is called________.

Chord
Explanation
A chord is a line segment that connects two points on a circle. It is a straight line that does not pass through the center of the circle. In this context, the line in the circle is referred to as a chord because it connects two points on the circumference of the circle.

Rate this question:

Related Topics Back to top