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Leto [7]
2 years ago
12

Find the area of a regular octagon with

Mathematics
1 answer:
sattari [20]2 years ago
4 0

Answer:

482.8 cm

Step-by-step explanation:

A=2(1+sqrt2)a^2=2·(1+squrt2)·10^2=482.84271

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What is the volume of the right prism with height h=14 cm, if the base of the prism is a triangle ∆ABC with side AB = 9 cm and a
Lina20 [59]
<u><em>Answer:</em></u>
volume of prism = 378 cm³

<u><em>Explanation:</em></u>
<u>The volume of the right prism can be calculated as follows:</u>
volume of prism = area of base * height of prism

<u>1- getting the area of base:</u>
Our base is a triangle, this means that:
area = 0.5 * base * height
We have:
base = 9 cm
height = 6 cm
Therefore:
area of base = 0.5 * 9 * 6
area of base = 27 cm²

<u>2- getting the volume:</u>
volume of prism = area of base * height of prism
volume of prism = 27 * 14
volume of prism = 378 cm³

Hope this helps :)
7 0
3 years ago
Four students were discussing how to find the unit rate for a proportional relationship. Which method is valid?
vovangra [49]

Answer:

The method that is valid in finding the unit rate for a proportional relationship is by:

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Step-by-step explanation:

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3 years ago
What is the pre-image of vertex A' if the image shown on
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Answer: B. (-6, 8).

Step-by-step explanation:

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Simplify the following expression.
adoni [48]
$$ 12 - 5[(4 + 2)\div\2 - (22 + 10)]= 157 $$
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30, you could just multiply both numbers, but it's also better to list out the factor until both match

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