The measure of a right angle is 90 degrees
Answer: 4x+11
Step-by-step explanation: Distribute the negative to the -8 and -2x. This will make 2x+3+8+2x. Combine like terms and you will get 4x+11. Hope this helps!

6x + 20
Step-by-step explanation:
- <u>To</u><u> </u><u>find</u><u> </u><u>:</u><u>-</u>
Perimeter of rectangle
- <u>Given</u><u> </u><u>:</u><u>-</u>
Length = 2x + 7
Breadth/width = x + 3
- <u>Solution</u><u> </u><u>:</u><u>-</u>
<em>We</em><em> </em><em>know</em><em> </em><em>that</em>
<em>
</em>
<em>Now</em><em> </em><em>we</em><em> </em><em>will</em><em> </em><em>substitute</em><em> </em><em>the</em><em> </em><em>values</em><em> </em><em>of</em><em> </em><em>length</em><em> </em><em>and</em><em> </em><em>breadth</em>
<em>
</em>
You set the corresponding sides equal to each other and solve for x as you would in a normal equation
Step-by-step explanation:
Hope I did the way it was required! And helped you somehow!