Find the area of a right-angled triangle if the legs are 4 and 6 and the hypothesis is 8.
September 5, 2021 | education
| The condition says that we are given a right-angled triangle, and it is also known that the legs are 4 and 6, and the hypotenuse is 8. In order to find the area of a right-angled triangle, we will use the formula:
S = 1/2 * a * b;
The area of the triangle is half the product of the legs.
But we have also been given the hypotenuse. Let’s check if it is a right-angled triangle. Does the Pythagorean theorem hold.
a2 + b2 = c2;
16 + 36 = 64;
64 = 64.
The triangle is rectangular.
We are looking for the area of a triangle:
S = 1/2 * 4 * 6 = 12.
Answer: 12.
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