Tony who is 6 ft tall is looking at a mirror on the ground 12 feet in front of him and he can see the top of the flagpole. He knows the distance from the mirror to the flagpole is 18 ft and that the 2 triangles are similar. Determine the height of the flagpole. Record your answer on your answer document on the griddable. A. Point A(–7, 4); Point B(–3, –1); Point C(–5, 3)
B. Point A(1, 4); Point B(–3, –1); Point C(–1, –3)
C. Point A(–5, –2); Point B(0, 2); Point C(2, 0)
D. Point A(4, 4); Point B(–3, –1); Point C(2, –3)

answer: i think one of the answer is $150 and $300?

step-by-step explanation:

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240

$6.42

step-by-step explanation: