Make a poster of different means of livlihood commonly practiced in rural and
urban areas in the three states( UP, Arunachal Pradesh and Meghalaya) by
depicting them in the form of collage in an overlapping pie chart. The
overlapping part will show the common occupations in all three states.
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Explanation:
Given: r1 = 1 cm, r2 = 2.5 cm, h =(7-1)= 6 cm
l = √(h² + (r2-r1)²)
= √((6)² + (2.5-1)²) cm
= √(36 + 2.25 )cm
= √38.25 cm
= 6.18cm
So,
External Surface area = (curved surface area of frustum) + (curved surface area of hemisphere)
= (22/7)(r1+r2)l +(2)(22/7)(r1)
= (22/7) [(1+2.5)6.18 + 2×(1)²] cm²
= (22/7)(3.5 × 6.18 +2) cm²
= (22/7) (21.63+2) cm²
= (22/7) × 23.63 cm²
= 519.86/7 cm²
= 74.26 cm²
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