Answer:
20
Step-by-step explanation:
Draw that out on a coordinate grid, you get a trapezoid with one base 6 units long, one base 4 units long and a height of 4. Using the formula for area of a trapezoid
h(b1 + b2)/2
The height, 4, b1 is a base, 6, b2 is the other base, 4, we get
4(4+6)/2
40/2= 20
