Live Education Quiz

9th mathematics Chapter10 Congruent Triangles

Sr #QuestionsABCD
1

If ∠A = 60° and ∠B = 70°, what is the measure of ∠C in a triangle?

50° 60° 70° 80°
2

In a triangle, the longest side is opposite the:

Largest angle Smallest angle Right angle None of the above
3

If two sides and the included angle of one triangle are equal to the corresponding parts of another triangle, what congruence criterion is satisfied?

SAS ASA SSS AAS
4

The exterior angle of a triangle is equal to:

The sum of its interior angles The difference of its interior angles Twice the measure of one of its interior angles Half the measure of one of its interior angles
5

In ΔABC and ΔDEF, if ∠A = ∠D, ∠B = ∠E, and AB = DE, what congruence criterion can be applied?

SAS ASA SSS AAS
6

Which of the following is NOT a criteria for congruent triangles?

SAS (Side-Angle-Side) SSA (Side-Side-Angle) ASA (Angle-Side-Angle) AAA (Angle-Angle-Angle)
7

In ΔPQR, if PQ = PR, then the triangle is:

Acute-angled Isosceles Equilateral Scalene
8

If two triangles are congruent, then their corresponding altitudes are:

Equal Proportional Perpendicular Parallel
9

If AB = CD, BC = AD, and ∠A = ∠D, what is the congruence criterion that can be applied?

SAS ASA SSS AAS
10

If two sides of a triangle are 4 cm and 7 cm, the third side can be:

2 cm 5 cm 9 cm 11 cm
11

If two triangles are similar, then their corresponding angles are:

Congruent Equal Supplementary None of the above
12

If ∠A + ∠B = 90°, then ΔABC is a:

Acute-angled triangle Right-angled triangle Obtuse-angled triangle Equilateral triangle
13

If two angles and the included side of one triangle are equal to the corresponding parts of another triangle, which criterion is satisfied?

SAS ASA SSS RHS
14

If two triangles are congruent, then their corresponding angles and sides are:

Equal Supplementary Complementary None of the above
15

If ΔABC is an equilateral triangle, then all its interior angles are:

60° 90° 120° 180°
16

If two triangles are similar, then their corresponding bisectors of angles are:

Equal Proportional Perpendicular Concurrent
17

If two triangles are similar, then their corresponding medians are divided in the ratio:

1:1 2:1 1:2 3:1
18

In a right-angled triangle, the side opposite the right angle is called the:

Base Hypotenuse Perpendicular Adjacent side
19

If ∠A = 45° and ∠B = 45°, what type of triangle is ΔABC?

Acute-angled Right-angled Obtuse-angled Equilateral
20

If the angles of a triangle are in the ratio 1:2:3, what is the measure of the smallest angle?

15° 30° 45° 60°
21

In a right-angled triangle, if the hypotenuse and one leg of one triangle are equal to the hypotenuse and one leg of another triangle, what criterion is met?

SAS ASA SSS RHS
22

If two triangles have equal corresponding angles and equal corresponding sides, they are:

Similar Congruent Neither Both
23

In a triangle, the sum of interior angles is:

90° 120° 180° 360°
24

If the angles of a triangle are in the ratio 2:3:5, what is the measure of the largest

30° 50° 75° 90°
25

If two angles of a triangle are 30° and 60°, what is the measure of the third angle?

30° 60° 90° 120°