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What is the surface area of the cone to the nearest whole number? Use 3.14 for π.

2,198 m2
3,429 m2
2,813 m2
1,231 m2

What is the surface area of the cone to the nearest whole number Use 314 for π 2198 m2 3429 m2 2813 m2 1231 m2 class=

Respuesta :

We know, Surface area of a cone = πr² + πrl
s = 3.14 * (14)² + 3.14 * 14 * 50
s = 615.44 + 2198
s = 2813.44 m²

In short, Your Answer would be Option C

Hope this helps!

Answer:

2813 sq.m.

Step-by-step explanation:

Height of cone = 48 m

Diameter of cone = 28 m

Radius of cone = [tex]\frac{Diameter}{2} = \frac{28}{2}=14 m[/tex]

Slant height l = 50 m

Total Surface area of cone = [tex]\pi r l +\pi r^{2}[/tex]

                                              = [tex]3.14 \times 14 \times 50 +3.14 \times 14^{2}[/tex]

                                              = [tex]2198 +615.44[/tex]

                                              = [tex]2813.44 m^2[/tex]

Thus the surface area of the cone to the nearest whole number is 2813 sq.m.

Hence Option C is correct.

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