Answer:
b = 3 units
Explanation:
To find the area of a parallelogram: A=bh
In this scenario, we need to find the base of the figure, so we use: b=A/h
(If we wanted to find the height, then: h=A/b)
Plug in our numbers: b=21/7
= 3 units^2
9.5m questions
12.2m answers