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kondor19780726 [428]
2 years ago
7

The area of a rectangular wall of a barn is 20 square feet. Its length is 8 feet longer than the width. Find the length and widt

h of the wall of the barn.
Mathematics
1 answer:
Margarita [4]2 years ago
4 0

Answer:

It there a picture

Step-by-step explanation:

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In trapezoid ABCD with legs AB and CD , diagonals BD ∩ AC =M so that BM:MD=1:4. Find AAMD, ACMD, and AACD if the area of AABM=8
bazaltina [42]

Answer:

Area of triangle AMD is 32 square inches.

Area of triangle CMD is 8 square inches.

Area of triangle ACD is 40 square inches.

Step-by-step explanation:

In trapezoid ABCD with legs AB and CD.

Diagonal BD and AC intersect at M so that BM:MD=1:4

We are given ar(ABM)=8 in²

Ratio of area of two triangle is equal to ratio of their base.

\dfrac{ar(ABM)}{ar(AMD)}=\dfrac{BM}{MD}

\dfrac{8}{ar(AMD)}=\dfrac{1}{4}

ar(AMD)=32\text{ in}^2

Thus, Area of triangle AMD is 32 square inches.

If two triangles lie on same base and same parallel line then their area is equal.

\therefore ar(ABD)=ar(ACD)

ar(ACD)=ar(ACD)=ar(AMD)+ar(ABM)

ar(ACD)=8+32\Rightarrow 40\text{ in}^2

Thus, Area of triangle ACD is 40 square inches.

ar(CMD)=ar(ACD)-ar(AMD)

ar(CMD)=40-32\Rightarrow 8\text{ in}^2

Thus, Area of triangle CMD is 8 square inches.

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3 years ago
What is 66.875 as a mixed number in simplest form.?
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Help! I need this for tomorrow!
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1. 1/2- you count the total (8) and then count the two and all the numbers greater than 5( don’t count 5) that is 4 so it would be 4/8 simplified to 1/2

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Answer:

Length x Width x Height

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