Geometry 8th Grade

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Geometry8th Grade

• Math Prompt 7

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Step 1 Read the problem CAREFULLY.
Jan must attach a support wire to a 40-foot-tall
utility pole. The wire will run from the top of
the pole to the anchor 22 feet from the base of
the pole, as shown below.

x
40 ft.
22 ft.
How many feet of wire will Jan need if she adds 1
foot of wire at EACH end to use for fastening?
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I need to find the length of x. I must use the
Pythagorean Theorem. a2 b2 c2
a2 b2 c2 222 402 c2 484 1600 c2 2084
c2 ?2084 c 45.6 ? c
x
40 ft.

22 ft.
So the length of x ? 45.6 ft.
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Now that I know x ? 45.6 I must add 1 foot of
wire to EACH end for fastening.
x
40 ft.

45.6 2 47.6 Or rounded out is about 48 ft.
of wire.
22 ft.
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Remember, to show all work and place your answer
in the space provided.
47.6 or 48
Answer ______________feet