Answer:
A = 24
Explanation:
Figure shown is a trapezoid
Area of a trapezoid =

where a and b = base lengths and h = height
The trapezoid shown has the following dimensions
Shorter base length (a) = 6
Longer base length (b) = 10
Height (h) = 3
Using these dimensions , plug in the values into the area formula
A =

add 6 + 10 = 16

divide 16/2 = 8

multiply 8 times 3
A = 24