In a rectangle, one side is 12 cm, the diagonal is 13 cm. Find the area of the rectangle.
| December 15, 2020 | education
The diagonal divided the rectangle into two right-angled triangles. We Use the Pythagorean Theorem to find the second side (That is, the second leg)
13 squared -12 squared = 169-144 = 25
So the other side = 5
S = 12 * 5 = 60 cm squared
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