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## MCQ Questions for Class 7 Mathematics Chapter wise with Answers

## Q1. The triangle whose lengths of sides are 3 cm, 4 cm, 5 cm is a

(i) obtuse-angled triangle

(ii) right-angled triangle

(iii) acute-angled triangle

(iv) None of these

(ii) right-angled triangle

## Q2. If two sides of a triangle are not equal the triangle is called

(i) scalene

(ii) isosceles

(iii) equilateral

(iv) right-angled

(i) scalene

## Q3. A triangle has medians :

(i) 2

(ii) 1

(iii) 3

(iv) None of these

(iii) 3

## Q4. How many vertices does a triangle have?

(i) 1

(ii) 2

(iii) 3

(iv) 4

(iii) 3

## Q5. Which is exterior angle of triangle?

(i) ∠BAD

(ii) ∠BAC

(iii) ∠ABC

(iv) ∠BCA

(i) ∠BAD

## Q6. If the angle of a triangle are in the ratio 3:4:5, then the angles of the given triangles are

(i) 45, 60, 75

(ii) 75, 30, 75

(iii) 55, 50, 75

(iv) 75, 50, 55

(i) 45, 60, 75

## Q7. A/an *_* connect a vertex of a triangle to the mid-point of the opposite side.

*_*(i) altitude

(ii) median

(iii) vertex

(iv) none of these

(ii) median

## Q8. If one angle of a triangle is obtuse, the triangle is called

(i) acute-angled

(ii) right-angled

(iii) scalene

(iv) obtuse-angled

(iv) obtuse-angled

## Q9. Sum of three angles of a triangle is :

(i) 170°

(ii) 90°

(iii) 180°

(iv) None of these

(iii) 180°

## Q11. In △ABC is right angled at C. If Ac = 3cm and BC = 4cm then find the length of AB =?

(i) 4

(ii) 3

(iii) 5

(iv) 6

(iii) 5

## Q12. A triangle has one right angle. What could be the measure of the other two angles?

(i) 20 and 70

(ii) 30 and 70

(iii) 60 and 20

(iv) 30 and 15

(i) 20 and 70

## Q13. If the angles of a triangle are in the ratio 4:5:9. Find all the angles of a the triangle

(i) 40 deg, 50 deg , 90 deg

(ii) 90 deg, 72 deg, 18 deg

(iii) 9 deg, 90 deg, 55 deg

(iv) 45 deg, 60 deg, 18 deg

(i) 40 deg, 50 deg , 90 deg

## Q14. In a right triangle, if hypotenuse is H, perpendicular is P and base is B then

(i) B² = H² + P²

(ii) H² = P² + B²

(iii) H² = P² – B²

(iv) P² = B² + H²

(ii) H² = P² + B²

#### Q15. In a ΔABC, if AB+BC = 10 cm, BC+CA = 12 cm, CA+AB = 16 cm, then the perimeter of the triangle is *__*.

(i) 19cm

(ii) 17cm

(iii) 28cm

(iv) 22cm

(i) 19cm

## Q16. If all the three sides of a triangle are equal, the triangle is called

(i) equilateral

(ii) right-angled

(iii) isosceles

(iv) scalene

(i) equilateral

## Q17. If two angles of the triangle are 20, 80, then the third angle is of

(i) 80

(ii) 100

(iii) 90

(iv) None of those

(i) 80

## Q18. In a ΔABC,which of the given condition holds?

(i) AB−BC>CA

(ii) AB+BC<CA

(iii) AB−BC<CA

(iv) AB+CA<BC

(iii) AB−BC

## Q19. Which of the following cannot be the sides of a right triangle?

(i) 2 cm, 2 cm, 4 cm

(ii) 5 cm, 12 cm; 13 cm

(iii) 6 cm, 8 cm, 10 cm

(iv) 3 cm; 4 cm; 5 cm

(i) 2 cm, 2 cm, 4 cm

## Q20. If the angles of a triangle are in the ratio 4:5:9. Find all the angles of a the triangle

(i) 40°, 50°, 90°

(ii) 90°, 72°, 18°

(iii) 9°, 90°, 55°

(iv) 45°, 60°, 18°

(i) 40°, 50°, 90°

## Q21. If one angle of a triangle measures 90°, the triangle is called

(i) acute-angled

(ii) obtuse-angled

(iii) right-angled

(iv) none of these

(iii) right-angled

## Q22. If the sum of two angles is greater than 1800, then which of the following is not possible?

(i) tow obtuse angles

(ii) two right angles

(iii) one reflex and one acute angle

(iv) one obtuse and one acute angle

(i) tow obtuse angles

### Q23. Aryan wants to plant a flower on the ground in the form of a rhombus. The diagonals of the rhombus measures 42 cm and 56 cm. Find the perimeter of the field.

(i) 150 cm

(ii) 140 cm

(iii) 130cm

(iv) 120cm

(ii) 140 cm

## Q24. Maximum number of possible obtuse angles in a triangle is:

(i) 0

(ii) 1

(iii) 2

(iv) 3

(ii) 1

## Q25. The triangle whose lengths of sides are 3 cm, 4 cm, 5 cm is a

(i) obtuse-angled triangle

(ii) right-angled triangle

(iii) acute-angled triangle

(iv) None of these

(ii) right-angled triangle

## Q26. How many altitudes can a triangle have?

(i) 1

(ii) 2

(iii) 3

(iv) 4

(iii) 3

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