h=7r=5.5

The surface area of a cone is equal to the area of the base plus the area of the cone.

(π⋅(radius))⋅((radius)+(radius)2+(height)2)

Substitute the values of the length r=5.5 and height h=7 into the formula. Pi π is approximately equal to 3.14.

(π⋅5.5)(5.5+(5.5)2+(7)2)

Multiply π by 5.5.

17.27875959(5.5+(5.5)2+(7)2)

Raise 5.5 to the power of 2.

17.27875959(5.5+30.25+(7)2)

Raise 7 to the power of 2.

17.27875959(5.5+30.25+49)

Add 30.25 and 49.

17.27875959(5.5+79.25)

17.27875959(5.5+79.25)

Add 5.5 and 79.25.

17.27875959⋅14.4022469

Multiply 17.27875959 by 14.4022469.

248.85296193

248.85296193

Find the Surface Area cone (7)(5.5)