sissy1979x
sissy1979x sissy1979x
  • 25-07-2019
  • Mathematics
contestada

What is the surface area of the cone? (radius 10in height 26in)
A) 425pi in2
B) 460pi in2
C) 360pi in2
D) 390pi in2

Respuesta :

absor201
absor201 absor201
  • 25-07-2019

Answer:

C) 360pi in2

Step-by-step explanation:

Given:

radius, r= 10in

height, h=26in

surface area of the cone, T.S.A= ?

T.S.A=πrl +πr^2

         =π(10)(26) +π(10)^2

         =260π+100π

         =360π^2 !

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