From the condition it is known that the sides of the parallelogram are 8 cm and 10 cm. It is also known that the lower height is 4 cm. Find the length of the second height.
For this we apply the formula for finding the area of a parallelogram:
S = a * ha.
The area of a parallelogram is equal to the product of a side by the height lowered to that side.
For a = 10 cm and height ha = 4 cm, we are looking for the parallelogram area.
S = 10 * 4 = 40 cm ^ 2.
For the second side, we write down the formula:
S = b * hb.
hb = S / b;
Substitute values and perform calculations:
hb = 40/8 = 5 cm second height.
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