In triangle ABC, angle A is straight leg AB = 6cm, leg AC = 8cm. Find the hypotenuse.
July 9, 2021 | education
| Angle A is straight, so the triangle is right-angled. Let’s use the Pythagorean theorem. The sum of the squares of the legs is equal to the square of the hypotenuse.
We know both legs. AB = 6 cm, AC = 8 cm.
AB ^ 2 + AC ^ 2 = BC ^ 2
6 ^ 2 + 8 ^ 2 = 36 + 64 = 100
√100 = 10.
Answer: hypotenuse BC = 10 cm.
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