Question

Calculate the total surface area of a solid cone of slant height 15cm and base radius 8cm.​

Answer 1

Answer:

it's 578 cm

$\pi \times 8 \times 15 + \pi \times {8 }^{2} = 578$

Explanation:

$surface \: area \: of \: a \: corn = \pi \times radius \times slant \: height + \pi \times {r}^{2}$

Answer 2

Answer:

1155.52

Explanation:

because the formula is 2πrh+2πrsquared

so 2(3.14)(8)(15)+2(200.96)= 1155.52

and you get 200.96 by doing your circle formula for area , which is A=πrsquared