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3 years ago

I need some help with this

Mathematics

1 answer:

ollegr [7]3 years ago

5 0

Answer:

1200 square inches

Step-by-step explanation:

First find area of rectangle which is length x width

20 x 30 = 600

then to find area of the two right triangles multiply the legs then divide by 2

20 x 30 = 600

600/2 = 300

since there is 2 multiply 300 by 2

600

then add everything together

600+600 = 1200

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<u>Explanation:</u>

Given:

Shape of pool = octagonal

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Volume, V = ?

We know:

Area of octagon = 2 ( 1 + √2) a²

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$\frac{11}{1+\sqrt{2} } = a^2$

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We know:

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