Please help with 61
thank you

112.5 ft not sure though

112.5 ft

Step-by-step explanation:

15 is to 40 what x is to 300

15/40 = x/300 (cross multiplication)

(15 * 300) / 40 = 112.5 ft

By drawing a diagonal in a square you are dividing the square into two congruent isosceles right triangles. Using Pythagorean Theorem we can find the length of the diagonal.

a squared + b squared = c squared
a and b represent the sides of the triangle (aka the length of a side of the square), and c represents the hypotenuse (aka the diagonal).
9 squared + 9 squared = c squared
81 + 81 = c squared
162 = c squared
take the square root of both sides
81= x