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Is a right triangle. If AB = 3 and AC = 7, find BC. Leave your answer in simplest radical form.

Is a right triangle. If AB = 3 and AC = 7, find BC. Leave your answer in simplest radical form.
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4 votes
Is a right triangle. If AB = 3 and AC = 7, find BC. Leave your answer in simplest radical form.

User Elizafox
by
8.6k points

1 Answer

2 votes
Use the Pythagorean Theorem

3^2 + b^2 = 7^2

9 + b^2 = 49

Subtract

b^2 = 40

b = √40
User Ada
by
8.0k points
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