a rectangle pool is 15 ft wise and 20 feet long is surrounded by a deck that is four feet wide . what is the area of the surface of the deck ?

ion

step-by-step explanation:

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first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.

the answer is d

step-by-step explanation:

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