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A,B and C form a triangle where BAC= 90°, AB=13.7mm and CA= 8.4, find the length of BC

User Abass A
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1 Answer

1 vote

Answer:

Explanation:

First you have to realize that you are told that A is the right angle. The middle letter of any angle is the vertex.

BA = 13.7

CA = 8.4

What is missing is the hypotenuse (which does not contain the letter A).

BC^2 = AB^2 + AC^2

BC^2 = 13.7^2 + 8.4^2

BC^2 = 187.69 + 70.56

BC^2 = 258.25

BC = √258.25

BC = 16.07

User Lenek
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