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Mathematics, 27.09.2019 22:00 hwest98

A20-foot ladder is leaned against a wall. if the base of the ladder is 8 feet from the wall, how high up on the wall will the ladder reach? round the answer to the nearest tenth.

a. 21.5
b. 18.3
c. 15.7
d. 19.1

i keep getting 18.3 as my answer, but i feel like i'm doing something wrong. can somebody explain and show me how to do this correctly? i don't think i'm doing it right : (

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A20-foot ladder is leaned against a wall. if the base of the ladder is 8 feet from the wall, how hig...
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