71+71=142
180-142=38
2+6x=38
6x=36
x=6
Answer:
BD = 8
m∠BDA = 90°
∆ABD and ∆BCD are both right triangles, each with two known side lengths.
Step-by-step explanation:
Direct answer from PLATO so change it a bit.
The first people cuz of the formula
Hey there!
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The answer to your question is
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<u></u>
<u>Formulas:</u>
<u></u>
<em>Area of semi-circle = </em>
<em></em>
<em>Area of rectangle = </em>
<em></em>
<em>Area of triangle = </em>
<em></em>
<em></em>
<u>Now solve:</u>
<em>semi-circle</em>



<em>(We will use 3.14 as approx. for pi)</em>
<em />
<em>rectangle</em>

<em>triangle</em>
<em />
<em />
<em />
<em />
<em>Now add them all together:</em>
<em />
<em />
<em />
Have a terrificly amazing day!
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