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kirza4 [7]
3 years ago
12

I need to know everything.

Mathematics
1 answer:
Liula [17]3 years ago
4 0
180 = 14x + 8x + 4
180 = 22x + 4
180 - 4 = 22x + 4 - 4
176 = 22x
176/22 = 22x/22
8 = x
8x + 4
8(8) + 4
64 + 4
68.
Hope this helps!
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A trapezoid has a height of 6 feet. The measures of the bases are 12 units and 18
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The area of this trapezoid is 90 square feet.

<h3>Explanation : </h3>

Before we know the answer, let's we know the formula first. The formula for count the area of trapezoid is :

\boxed {\bold {A = \frac {(a+b) \times h}{2}}}

If :

  • A = area of trapezoid
  • a = bottom bases of trapezoid
  • b = top bases of trapezoid
  • h = height of trapezoid

Okay, let's we count its :

We know that :

  • a = bottom bases of trapezoid = 18 feet
  • b = top bases of trapezoid = 12 feet
  • h = height of trapezoid = 6 feet

Question : A = area = ... ?

Answer :

A = \frac {(a+b) \times h}{2} \\ A = \frac {(12+18) \times \cancel6}{\cancel2} \\ A = 30 \times 3 = 90  \: {ft}^{2}

<u>Subject</u><u> </u><u>:</u><u> </u><u>Mathematics</u>

<u>Keyword</u><u> </u><u>:</u><u> </u><u>Count</u><u> </u><u>The</u><u> </u><u>Area</u><u> </u><u>of</u><u> </u><u>a</u><u> </u><u>shape</u>

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