<u>angle B and angle G</u> are congruent because of the alternate exterior angles theorem.
<u>angle A and angle H</u> are also congruent, because of the same theorem.
So, the answers are <u>A, and D</u>
The surface area is the area of the outside of a 3D shape for example, let’s say you have a cube, a cube has 6 sides, so you have to find the area of each side and then add it up, since it’s a cube you would technically have to find the area of one side and then just multiply it by 6, that would be the easiest way to do it
Hope I helped!
Answer:
-1/root2
Step-by-step explanation:
7pi/4 radians is the same as -pi/4 radians
sin(-pi/4) is -sin(pi/4) = -1/root2
