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Iteru [2.4K]
2 years ago
12

An 18-foot ladder is leaning against a wall. The bottom of the ladder is 4.5 feet from the base of the wall.

Mathematics
1 answer:
lana66690 [7]2 years ago
3 0

Answer:

d

Step-by-step explanation:

use Pythagoras theorem

that is a²+b²=c²

so 4.5²+b²= 18²

rearrange to b²=18²-4.5²

so you get b=

\sqrt{303.75}

that is equal to 17.42842506

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