Find the surface area of this cone.
60π m2
20π m2
36π m2
54π m2

The surface area of a cone with radius of 4 m and slant height of 5 m is 36π m²
An equation is an expression that shows the relationship between two or more numbers and variables.
The surface area of a cone with radius (r) and slant height (l) is:
S.A = πr(r + l)
Given that r = 4, l = 5, hence:
S.A = π(4)(4 + 5) = 36π m²
The surface area of a cone with radius of 4 m and slant height of 5 m is 36π m²
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