Complete question is;
A 21 ft ladder is leaning against a tall wall with the foot of the ladder placed at 7 feet from the base of the wall and the angle of elevation is?
Answer:
θ = 70.5°
Step-by-step explanation:
The angle of elevation simply means the angle that the ladder makes with the ground. Let's call this angle θ.
I've attached a diagram showing the triangle made by this ladder and the wall.
From the attached diagram, we can see the triangle formed by the ladder and the wall.
We can find the angle of elevation θ from trigonometric ratios.
Thus;
7/21 = cos θ
cos θ = 0.3333
θ = cos^(-1) 0.3333
θ = 70.5°
12 has more factors the 19,21,,23, and 25.
1 dozen is 12, so 12x12=144 people. Hope this helps!
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➷ Just subtract the two values:
14.5 - 13.71 = 0.79
He had 0.79 feet of wire left
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➶ Hope This Helps You!
➶ Good Luck (:
➶ Have A Great Day ^-^
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