Question

Quincy distributed popcorn in paper cones. Each cone had base radius 8 cm and slant height 20 cm. Find the area of paper used to make a cone.

Answer 1

total surface area of cone = πr (r+l)
3.14×8 (8+20)
703.36 cm^2

Answer 2

Answer:

The area of the paper is used to make cone is 502.4 cm² .

Step-by-step explanation:

Formula

$Area\ of\ paper\ is\ used\ to\ make\ a\ cone = \pi\ r\ l$

Where r is the radius and l is the slant height .

As given

Quincy distributed popcorn in paper cones.

Each cone had base radius 8 cm and slant height 20 cm.

r = 8 cm

h = 20 cm

$\pi = 3.14$

Putting all the values in the formula

$Curved\ surface\ area\ of\ a\ cone = 3.14\times 8\times 20$

                                                              = 502.4 cm²

Therefore the area of the paper is used to make cone is 502.4 cm² .