Answer gets 100 points and brainliest do it correctly

Step-by-step explanation:

A=a+b /2 times h

A=18

Area of the trapezium = 1/2 (sum of parallel sides) × height

Area = 1/2 (3+6) × 4

Area = 18 in²

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