A right triangle has legs 9 and 12. What is its area?

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Multiple Choice

A right triangle has legs 9 and 12. What is its area?

Explanation:
The area of a right triangle is half the area of a rectangle that uses the triangle’s legs as its sides. Here, the legs are 9 and 12, perpendicular to each other, so they serve as base and height. A rectangle with sides 9 and 12 has area 9 × 12 = 108. Half of that is 108 ÷ 2 = 54. So the area is 54.

The area of a right triangle is half the area of a rectangle that uses the triangle’s legs as its sides. Here, the legs are 9 and 12, perpendicular to each other, so they serve as base and height. A rectangle with sides 9 and 12 has area 9 × 12 = 108. Half of that is 108 ÷ 2 = 54. So the area is 54.

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