Answer:
ΔEFG ~ ΔRPQ - Angle Angle Angle Theorem
ΔEFG ~ ΔRFQ - Side Side Side Proportional Theorem
Step-by-step explanation:
First set : using triangle sum theory to find missing angle. Letters should match congruent angles when creating statement.
Second set :
= =
if you google (surface area of a cylinder) it lets you input the radius and height and it gives your answer
D.
The answer is 9x-4/(x+2)(x-2)