9th mathematics Chapter10 Congruent Triangles
| Sr # | Questions | A | B | C | D |
|---|---|---|---|---|---|
| 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° |