The surface area of a cone with radius r units and slant height s units is shown below:

Surface area = 3.14 (rs + r2)

Part A: If r = 2 units and s = 3 units, write an expression that can be used to calculate the surface area of the cone.

Part B: What is the surface area of the cone? Show your work

Question

11 May, 22:28

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Coy · Answer 1

Part A:

Surface area = 3.14 (2*3 + 2²)

Part B:

Surface area = 3.14 (2*3 + 2²)

= 3.14 (6 + 4)

= 3.14 * 10

= 31.4 units²

The surface area of a cone with radius r units and slant height s units is shown below:Surface area = 3.14 (rs + r2)Part A: If r = 2 units and s = 3 units, write an expression that can be used to calculate the surface area of the cone.Part B: What is the surface area of the cone? Show your work