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an 8-foot ladder leaning against a wall makes an angle of elevation of 70 degrees with the ground how far up the wall is the ladder to the nearest Foot



Answer :

The length of the ladder is L = 8 foot.

The angle of ladder with ground is 70 degree.

The ladder lean on the wall can be expressed as,

Determine height on the wall to which ladder is up on the wall.

[tex]\begin{gathered} \sin 70=\frac{h}{8} \\ h=0.9397\cdot8 \\ =7.51 \\ \approx8 \end{gathered}[/tex]

So up the wall is the ladder is 8 foot.

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