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The surface area of the cone and the cylinder are not equal.
1 Find the surface area of the cylinder
we know that
The surface area of a cylinder is 2× area of base + perimeter of base×height
where the area of the base is πr², the perimeter of the base 2πr, and the height is r.
Substitute these values
Surface area = 2 πr²+2πr×r
=2 πr²+2 πr²
= 4πr²
2 Find the surface area of the cone
we know that
the surface area of a cone is πr² +πr×l= πr² +πr×(2r)
= 3πr²
therefore the surface area of the cone ≠ the surface area of the cylinder.
since the correct option is false.
Learn more about the surface area here: https://brainly.com/question/1701726
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