a ladder 30m long, rests against a vertical wall. if the foot of the ladder is 24m away from the wall, how far up the wall is th
1 answer:
answer is 18
Step-by-step explanation:
use Pythagoras theorem with is a²+b²=c²
if u draw the ladder against the wall you'll get a right triangle .
c is hypotenus which is the longest side of the triangle so it is 30
so you'll get 24²+b²=30²
rearrange to b²=30²-24²
you'll get b=
therefore that is 18
hope you understood :)
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