40. For each of the following figures, find What is the distance to travel in a round The tur Does it happen? 8 cm __7 cm 8 cm 7 cm (1) 64 cm (3) 40 cm 8 cm (2) 22 cm (4) 38 cm

Find which of the following can be the dimensions of the sides of a triangle. (a). 5 cm, 9 cm, 13 cm (b) 6 cm, 8 cm, 15 cm (c) 12 cm, 10 cm, 9 cm (d) 3 cm, 7 cm, 3 cm.

Find whether the following measures can be the sides of triangles. (i) 5 cm, 7 cm, 10 cm (ii) 3 cm, 6 cm, 5 cm (iii) 2 cm, 7 cm, 14 cm

What is the distance between genes 'y' ( body colour) and 'w' (eye colour) of Drosophila? (a) 98.7 cM (b) 1.3 cM (c) 62.8 cM (d) 37.2 cM

If the area of the trapezium whose parallel sides are 6 cm and 10 cm is 32 sq. cm, then the distance between the parallel sides is (a) 2 cm (b) 4 cm (c) 5 cm (d) 8 cm

A cylinder with base radius of 8 cm and height of 2 cm is melted to form a cone of height 6 cm. The radius of the cone is (a) 4 cm (b) 5 cm (c) 6 cm (d) 8 cm

A cylinder with base radius of 8 cm and height of 2 cm is melted to form a cone of height 6 cm. The radius of the cone is (a) 4 cm (b) 5 cm (c) 6 cm (d) 8 cm

D and E are points on the sides AB and AC respectively of Delta ABC . In each of the following cases, determine whetheer DE||BC or not. (i) AD=5.7 cm, DB =9.5 cm, Ae =4.8 cm and EC=8 cm . (ii) AB=11.7 cm, AC =11.2 cm , AD= 6.5cm and AE =41.2 cm , (iii) AB=10.8 cm, AD=6.3 cm, AC=9.6 cm and EC=4 cm . (iv) AD=7.2 cm AE=6.4 cm. AB =12 cm and AC=10 cm .

Each side of a polygon is 3.8 cm in length and its perimeter is 22.8 cm. How many sides does the polygon have?