Math Expression: Area of a Parallelogram Practice Question

Given a parallelogram with the area of 30in². Find the height of the parallelogram given that its base is 6cm.

Step 1

The picture below shows the parallelogram with the base of 6cm and the height of h.
Step 2

Since the value of the area is given as 30in², we can substitute A with 30. Similarly, since the base is given as 6cm, we can substitute b with 6 as shown below:
Step 3

Now, we have 6h = 30. To find h, we need to remove 6. We can do so by dividing both sides of the equation with 6. This is shown below:
Step 4

Now, the calculated number 5, has no meaning until we include the unit for it. Since the area is in inch², 6 will be in inch. Hence:

h = 5 in
Step 5

Therefore, the answer is B.