15-7=8
8×2=16
That's the answer
Answer:
The area of the square as a function of the radius is given by 2r^2
Step-by-step explanation:
Check the attachment for solution
If the angles are vertical, they must be equal.
If the angles are supplementary, then they add up to 180 degrees.
If each angles is x (since they are equal)
then
2x=180, or
x=90 °
The angles are each 90 °