Find the surface area of each figure. Round your answer to the nearest tenth. PLEASE HELP ASAP I AM GOING TO FAIL!

Step-by-step explanation:

otal surface areaStot = 665.7999511957 m2

lateral surface areaSlat = 409.7999511957 m2

bottom surface areaSbot = 256 m2

$450

step-by-step explanation:

first, you have to multiply 150x2=300

next, you have to add 150+300= 450

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh