3 years ago

Question 7 of 10 What is the length of BC in the right triangle below?

Mathematics

2 answers:

kramer3 years ago

8 0

Answer:

Step-by-step explanation:

horsena [70]3 years ago

7 0

Answer:

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

BC² = 9² + 12² = 81 + 144 = 225 ( take the square root of both sides )

BC = $\sqrt{225}$ = 15 → A

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