Question

The formula c² = a² + b² is the Pythagorean Theorem used to find the sides of a right

triangle. Find the leg of the right triangle (b) if the hypotenuse (c) is 13 cm. and the other leg of
the right triangle (a) is 12 cm.
A. 4 cm
B. 18 cm
C. 5 cm
D. 14 cm

Answer 1

OPTION C, 5

Explanation:

Using the formula, substitute the hypotenuse and the other leg of the right triangle.

13²=12²+b²

Rearrange appropriately.

13²-12²=c²

Convert.

13²=169

12²=144

Apply and work out.

169-144= 25

c²=25

c=√25

c=5

OPTION C is therefore the answer.

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Answer 2

Answer: 5 cm

Explanation:

B =
`\sqrt{13^(2) -12^(2) } = 5`