# Mathematics - Ix Assessment By Anil Sir

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CLASS IX INTERNAL ASSESSMENT

• 1.

### Interior angles on the same side of transversal are known as

• A.

Corresponding Angles

• B.

Alternate angles

• C.

Co-Interior angles

• D.

Vertically opposite angles

• E.

Option 5

C. Co-Interior angles
Explanation
Co-interior angles are the angles that are formed on the same side of the transversal when two parallel lines are intersected by a third line called the transversal. These angles are located between the two parallel lines, on the inside of the "V" shape formed by the transversal. Co-interior angles are supplementary, which means that their sum is equal to 180 degrees. Therefore, the correct answer is co-interior angles.

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• 2.

### The point of intersection of axes is known as ________.

ORIGIN
Explanation
The point where the x-axis and y-axis intersect is called the origin.

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• 3.

### ASS is a congruence criterion

• A.

True

• B.

False

B. False
Explanation
The statement "ASS is a congruence criterion" is false. The ASS (Angle-Side-Side) criterion is not a congruence criterion, but rather a similarity criterion. In congruence, two figures are identical in shape and size, while in similarity, two figures have the same shape but may have different sizes. The ASS criterion is used to determine if two triangles are similar, not congruent. Therefore, the correct answer is false.

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• 4.

### CPCT stands for

• A.

Creating parts for corresponding angles

• B.

Corresponding parts of congruent triangles

• C.

Correspondin parts of created triangles

• D.

All of the above

B. Corresponding parts of congruent triangles
Explanation
CPCT stands for Corresponding Parts of Congruent Triangles. This acronym is used in geometry to refer to the fact that corresponding parts of congruent triangles are congruent. In other words, if two triangles are congruent, then their corresponding sides and angles are also congruent. This property is useful in solving geometric problems and proving the congruence of triangles.

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• 5.

### The point (5,2) lies on the line  2x + 3y = 26

• A.

True

• B.

False

B. False
Explanation
The point (5,2) does not satisfy the equation 2x + 3y = 26. When we substitute x=5 and y=2 into the equation, we get 2(5) + 3(2) = 10 + 6 = 16, which is not equal to 26. Therefore, the statement is false.

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• 6.

### 2.020020002 is a/an

• A.

Rational number

• B.

Irrational Number

• C.

Can't say

• D.

Need to verify the question

A. Rational number
Explanation
The given number, 2.020020002, can be expressed as a ratio of two integers, since it has a finite decimal representation. Therefore, it is a rational number.

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• 7.

### The degree of a zero polynomial is

• A.

0

• B.

Real numbers

• C.

Not defined

• D.

None of the above

C. Not defined
Explanation
The degree of a polynomial is the highest power of the variable in the polynomial. However, a zero polynomial is a polynomial in which all the coefficients are zero. Since there are no terms with non-zero coefficients in a zero polynomial, it does not have a highest power of the variable. Therefore, the degree of a zero polynomial is not defined.

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• 8.

### Which of the following points lie on the line  2 x + y =7

• A.

(2,3)

• B.

(1,5)

• C.

(-3,13)

• D.

All of the above

• E.

Option 5

D. All of the above
Explanation
All of the given points (2,3), (1,5), and (-3,13) satisfy the equation 2x + y = 7. When we substitute the x and y values of each point into the equation, we get a true statement. Therefore, all of these points lie on the line 2x + y = 7.

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• 9.

### Line l is the bisector of an angle A and B is any point on l. BP and BQ are perpendiculars from B to the arms of angle A. Which of the following is true

• A.

AP=AQ

• B.

BP=BQ

• C.

AB=AP

• D.

1 AND 2 BOTH

• E.

ONLY 1

• F.

ONLY 2