Math, asked by ravir92971, 3 months ago

CCE RE
3. A right circular metalic cone of height 20cm and base radius 5cm is melted and
recast into a solid sphere. Find the radius of the sphere.

Answers

Answered by dhruvsri1234

7

Answer:

l=√r²+h²

l=√(5)²+(20)²

l=√25+400

l=√425

l=20.6cm

Step-by-step explanation:

LSA of cone=LSA of sphere

π.r.l=4π.r²

22/7×5×20.6=4×22/7×r²

323.71=88/7×r²

323.71×7/88=r²

r²=25.74

r=√25.74

r=5.07cm

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