Question

What is the length of BC in the right triangle

Answer 1

15

Answer 2

pythagorean theorem

Answer 3

\[\large c^2 = a^2 +b^2 \]\[\large c^2= 9^2 + (12)^2 \]\[\large c= \sqrt{ 9^2+(12)^2} = \sqrt{ 81 + 144} = 15 \]

Answer 4

Pythagoras says the hypotenuse squared is equal to the sum of the squares of the sides.

This is often written as a^2 + b^2 = c^2

So in your diagram, BC^2 = AB^2 + AC^2

Answer 5

so the right answer is BC= 225

Answer 6

No.

BC = sqrt(225)

Read my and Jhannybean's comments again.

Answer 7

BC is the square root of 225. which is 15.