3 years ago

Please help its a test

Mathematics

1 answer:

densk [106]3 years ago

7 0

Answer:

the product form is 3x+2and x-6

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8.What is the lateral area and the surface area of the cone shown below? Round the answers to the nearest tenth.the figure is no

leonid [27]

Answer:

Part 1) The lateral area is $LA=791.7\ ft^{2}$

Part 2) The surface area is $SA=1,244.1\ ft^{2}$

$LA=791.7\ ft^{2}$ , $SA=1,244.1\ ft^{2}$

Step-by-step explanation:

step 1

Find the lateral area of the cone

we know that

The lateral area of the cone is equal to

$LA=\pi rl$

we have

$r=12\ ft$

$l=21\ ft$

substitute

$LA=(3.1416)(12)(21)=791.7\ ft^{2}$

step 2

Find the surface area of the cone

we know that

The surface area of the cone is equal to

$SA=\pi r^{2}+LA$

we have

$r=12\ ft$

$LA=791.7\ ft^{2}$

substitute

$SA=(3.1416)(12)^{2}+791.7=1,244.1\ ft^{2}$

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4 years ago