Basically just do the problem backwards.
72÷9=8
72÷8=9
Answer:
127 degrees
Step-by-step explanation:
540 degrees is what the interior of a pentagon should add up to. So you do 540-156-72-98-87=127. The measure of the final interior angle is 127 degrees.
Answer:
its 216
Step-by-step explanation:
when it's one the edge the arc is double the angle
Answer:
Step-by-step explanation:
We must develop three equations in three unknowns.
I will use these three: