Answer:
you use the pythagorean theorem
Step-by-step explanation:
P.S. im not doing your hw
Answer:



Step-by-step explanation:
<u>Given:</u>



<u>Solve for </u>
<u> in the 1st equation:</u>



<u>Substitute the value of </u>
<u> into the 2nd equation and solve for </u>
<u>:</u>






<u>Substitute the value of </u>
<u> into the 3rd equation and solve for </u>
<u>:</u>






<u>Plug </u>
<u> into the solved expression for </u>
<u> and evaluate to solve for </u>
<u>:</u>



<u>Plug </u>
<u> into the solved expression for </u>
<u> and evaluate to solve for </u>
<u>:</u>




Therefore:



The shape has 7 sides.
The sum of the interior angles is (7-2)180 = 5 * 180 = 900 degrees.
Divide the total sum by 7:
X = 900 /7 = 128.6 degrees.
It’s either b or d. Hope this helps! :)
<h3>47 × 63 = <u>2961</u></h3>
<h3>... Hope this will help... </h3>
<h3>U can also verify the answer using a calculator </h3>