Question

Find the area of wasted material if two circles of radius 7 cm are cut out of a rectangular sheet of material that is 17 cm long and 20 cm wide.​

Answer 1

Answer:

32cm

Step-by-step explanation:

1. Ar of circle =22/7*R^2
2. Ar. of one circle =22/7*7^2 = 22*7=154cm
3. Ar of 2 circle =154*2=308cmsq.
4. Ar. of rectangular sheet =l*b = 17*20 = 340
5. Ar. of remaining material =ar.of sheet-ar of 2 circles
6. =340-308=32cm sq
7. WLC BRO