## MCQ Questions for Class 7 Maths: Ch 6 The Triangle and its Properties

1. A triangle in which two sides are of equal lengths is called _______________.
(a) scalene
(b) acute-angled
(c) equilateral
(d) isosceles
â–º (d) isosceles

2. ABC is an isosceles triangle with AB = AC and AD is altitude, then ____.
(a) âˆ B>âˆ C
(b) âˆ B<âˆ C
(c) âˆ B=âˆ C
(d) None of these
â–º (c) âˆ B=âˆ C

3. The triangle whose lengths of sides are 3 cm, 4 cm, 5 cm is a
(a) obtuse-angled triangle
(b) right-angled triangle
(c) acute-angled triangle
(d) None of these
â–º (b) right-angled triangle

4. Î”ABC is right-angled at C. If AC = 5 cm and BC = 12 cm find the length of AB.

(a) 13 cm
(b) 11 cm
(c) 20 cm
(d) None of these
â–º (a) 13 cm

5. The sum of the lengths of any two sides of a triangle is _____________ the third side of the triangle.
(a) greater than
(b) half
(c) less than
(d) double
â–º (a) greater than

6. A/an _____________ connect a vertex of a triangle to the mid-point of the opposite side.
(a) altitude
(b) median
(c) vertex
(d) none of these
â–º (b) median

7. How many medians a triangle can have?
(a) 1
(b) 2
(c) 3
(d) none of these
â–º (c) 3

8. Which is the longest side of a right triangle?
(a) Base
(b) Perpendicular
(c) Hypotenuse
(d) None of these
â–º (c) Hypotenuse

9. How many altitudes can a triangle have?
(a) 1
(b) 2
(c) 3
(d) None of these
â–º (c) 3

10. Which is the longest side in the triangle ABC right angled at B?
(a) AB
(b) AC
(c) BC
(d) None of these
â–º (b) AC

11. If the angles of a triangle are in the ratio 4:5:9. Find all the angles of a the triangle
(a) 40 deg, 50 deg , 90 deg
(b) 90 deg, 72 deg, 18 deg
(c) 9 deg, 90 deg, 55 deg
(d) 45 deg, 60 deg, 18 deg
â–º (a) 40 deg, 50 deg , 90 deg

12. One of the angles of a triangle is 110Â° and the other two angles are equal what is the measure of each of these equal angles
(a) 35Â°,35Â°
(b) 40Â° , 40Â°
(c) 11Â°, 11Â°
(d) 80Â° , 80Â°
â–º (a) 35Â°,35Â°

13. Which is the longest side in the triangle PQR right angled at P?
(a) PQ
(b) QR
(c) PR
(d) None of these
â–º (b) QR

14. In a Î”ABC,which of the given condition holds?
(a) ABâˆ’BC>CA
(b) AB+BC<CA
(c) ABâˆ’BC<CA
(d) AB+CA<BC
â–º (c) ABâˆ’BC<CA

15. In the Pythagoras property, the triangle must be ___________ .
(a) obtuse-angled
(b) acute-angled
(c) right-angled
(d) none of these
â–º (c) right-angled

16. Î”PQR is a triangle right-angled at P. If PQ = 3 cm and PR = 4 cm, find QR.
(a) 8 cm
(b) 5 cm
(c) 7 cm
(d) 3 cm
â–º (b) 5 cm

17. In a Î”ABC,if AB+BC = 10 cm, BC+CA = 12 cm,CA+AB = 16 cm, then the perimeter of the triangle is ____.
(a) 19cm
(b) 17cm
(c) 28cm
(d) 22cm
â–º (a) 19cm

18. 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.
(a) 150 cm
(b) 140 cm
(c) 130cm
(d) 120cm
â–º (b) 140 cm
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