The cone and the cylinder below have equal surface area

Asked by maham237 @ 29/06/2021 in Mathematics viewed by 402 People

Answered by maham237 @ 29/06/2021

Answer:

False

Step-by-step explanation:

SA of cone = pi×r×l + pi×r²

= pi×r×(3r) + pi×r²

= 3pi×r² + pi×r²

= 4pi×r²

SA of cylinder = 2pi×r×h + 2pi×r²

= 2pi×r×2r + 2pi×r²

= 4pi×r² + 2pi×r²

= 6pi×r²

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