Question

Select the equation below that shows the correct setup to solve for the length of side BC in the triangle above.

• 9^2+x^2=7^2
• 9^2 + 7^2=x^2
• 7^2 -x^2=9^2
• x^2 - 7^2= 9^2
• 7^2 + x^2= 9^2

Answer 1

7²+x²=9²

Explanation:

None of the four shown in the picture are correct, but the 5th one (which you included in your writing) is.

7²+x²=9²