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A ladder 20 m long rest against a vertical wall so that the foot of the ladder is 9 m from the wall a. Find, correct to the nea...Asked by Feranmi
A ladder 20m long rests against a vertical wall so that the foot of the ladder is 9 m from the wall
a)find correct to nearest degree the angle that the ladder makes with the wall
b)find correct to 1 decimal place the height above the ground at which the upper end of the ladders touches the wall
a)find correct to nearest degree the angle that the ladder makes with the wall
b)find correct to 1 decimal place the height above the ground at which the upper end of the ladders touches the wall
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Answered by
oobleck
draw a diagram, and you can see that
(a) sinθ = 9/20
(b) √(20^2 - 9^2) = ____ m
(a) sinθ = 9/20
(b) √(20^2 - 9^2) = ____ m