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3 years ago

How any shapes s in a pentagon

Mathematics

1 answer:

Vlad [161]3 years ago

8 0

There are 5 sides on a pentagon. penta=5 sides

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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

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

8 0

4 years ago

Help please C. 280 D.40 E. 100

Lelu [443]

Answer:what are all the answers.sorry i cant see all the answers all i see is 80,and 160 degrees if there is a 360 degrees i would go with that one and my apologies if that answer was wrong.

Step-by-step explanation:

5 0

3 years ago

Max’s car travels 33 miles for every gallon of gas. On a road trip with a total distance of 512 miles, to the nearest gallon of

Archy [21]

Answer:

About 15 gallons.

Step-by-step explanation:

8 0

4 years ago

Read 2 more answers

Will give Brainliest!!! PLEASE HELP!!! 30 Points for this

Vladimir [108]

Answer:

congruent and perpendicular

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Evaluate C(8, 8). 0 1 n 8

kirill115 [55]

Answer: Second Option

C(8,8)=1

Step-by-step explanation:

We must calculate a combination

The combination $C (n, r) =\frac{n!}{r!(n-r)!}$

Where n is the number of elements that you can combine and you choose "r" from them.

C (8, 8) is the combination of 8 in 8.

Therefore

$n = 8\\r=8$

$C(8,8)= \frac{8!}{8!(8-8)!}\\\\C(8,8)=\frac{8!}{8!(0)!}\\\\C(8,8)=\frac{1}{1*1}\\\\C(8,8)=1$

The answer is the second option

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3 years ago