Answer:
C
Step-by-step explanation:
let hypotenuse of triangle with 60°=y

Use the link that’s what helped me
First, you need to divide 12.5/2.5= 5. After that, you need to multiply 17.50x5=87.50. So your answer is $87.50.
Answer:
Irrational: √2 = 1.4
Step-by-step explanation:
Everything about number one is because it's a half of circle so its area = 1/2 ¶r^2 and its perimeter = ¶r