Geometry Worksheet-15

Geometry Worksheet-15

1. Complement angle of

(a) 77.4º            (b) 67.3º            (c) 76.3º            (d) 77.3º

2. All linear pairs are

(a) Supplementary                       (b) vertically opposite

(c) right angles                              (d) none

3. Supplementary and complementary angles need not be

(a) equal to 180°, 90°                  (b) adjacent

(c) angles                                        (d) none

4. The two rays of an angle are called

(a) lines of the angle                    (b) two sides of the angle

(c) two parts of the angles          (d) none

5. The common end point of an angle is called

(a) vertex           (b) zero              (c) end point     (d) none

6. A rotating ray after making a com­plete rotation coincides with its ini­tial position. The angle formed is

(a) right angle                               (b) straight angle

(c) reflex angle                              (d) complete angle

7. The maximum number of letters that can be used to represent an angle are

(a) 5                    (b) 2                    (c) 3                    (d) 1

8. A triangle with one right angle and two acute angles is called

(a) right angled triangle             (b) acute angled triangle

(c) equilateral triangle                (d) none

9. A triangle with one obtuse and two acute angles is called

(a) right angled triangle             (b) acute angled triangle

(c) obtuse angled triangle          (d) None

10. A triangle with the sides measuring 5 cm, 6 cm and 4 cm is called

(a) equilateral triangle                (b) isosceles triangle

(c) scalene triangle                      (d) none

11. A triangle with the sides measuring 4 cm, 5 cm and 5 cm is called

(a) equilateral triangle                (b) isosceles triangle

(c) scalene triangle                      (d) none

12. Sum of all the three interior angles of a triangle is equal to

(a) 360°                                          (b) 120°

(c) 180°                                           (d) 90°

13. An exterior angle of a triangle is equal to the sum of two _____ angles.

(a) exterior opposite                    (b) interior opposite

(c) Interior                                     (d) opposite

14. In a right angled triangle if an angle measures 35° then the measure of other angle is

(a) 65°                (b) 55°                (c) 45°                (d) 30°

15. In the figure, measure of ∠x is

(a) 55°                (b) 85°                (c) 75°                (d) 55°

16. In the following, the set of measures which can form a triangle

(a) 70°, 90°, 25°                           (b) 65°, 85°, 40°

(c) 65°, 85°, 30°                           (d) 45°, 45°, 80°

17. Measure of ∠y is

(a) 65°                (b) 75°                (c) 65°                (d) 55°

18. Measure of ∠B and ∠C are

(a) 75°, 85°       (b) 75°, 75°        (c) 55°, 55°        (d) 65°, 65°

19. Measure of x° in the figure is

(a) 60°                (b) 70°                (c) 80°                (d) 55°

20. Sum of any two sides of a triangle is always .............. third side in a triangle.

(a) less than                                   (b) equal to

(c) greater than                             (d) none

Answer Key:

(1)-(d); (2)-(a); (3)-(b); (4)-(b); (5)-(a); (6)-(d); (7)-(c); (8)-(a); (9)-(c); (10)-(c); (11)-(b); (12)-(c); (13)-(b); (14)-(b); (15)-(c); (16)-(c); (17)-(b); (18)-(b); (19)-(b); (20)-(c)