Find the area of a right-angled triangle with a hypotenuse of 29 cm and a leg of 21 cm.
| December 5, 2020 | education
Area: 1/2 × leg × other leg
By the Pythagorean theorem, we find the remaining leg:
21 ^ 2 + a ^ 2 = 29 ^ 2
a ^ 2 = 400
a = 20
Substitute in the area formula:
1/2 × 20 × 21 = 210
Answer: 210
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