Answer:
b = 3 units
Step-by-step explanation:
Area of a parallelogram = base × height
Thus,
Area = 21 units²
base = b
height = 7
Plug in the value into the formula
Thus:
21 = b × 7
Divide both sides by 7
21/7 = b
3 = b
b = 3 units
Answer:
The answer was d
Step-by-step explanation:
156-36+36=84/2= 42 <—— the missing length.
Area would be 36x42= 1,512.