Hypotenuse 10 cm, one of the legs 8, how to find the unknown side?
| March 29, 2021 | education
In a right-angled triangle, the sum of the squares of the legs is equal to the square of the hypotenuse (Pythagorean theorem).
a² + b² = c²;
a² + 8² = 10²;
a² + 64 = 100;
a² = 100 – 64;
a² = 36;
a = √36;
a = 6 cm – unknown leg (side) of a right-angled triangle.
Answer: 6 cm
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