Practicing Success
Practicing Success
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The angle of elevation of a ladder leaning against a wall is $60^\circ$ and the foot of the ladder is 6.5 m away from the wall. The length of the ladder is: |
$6.5 \sqrt{3}$ m $13 \sqrt{3}$ m 12 m 13 m |
13 m |
⇒ cos\({60}^\circ\) = \(\frac{6.5}{AC}\) ⇒ \(\frac{1}{2}\) = \(\frac{6.5}{AC}\) ⇒ AC = 6.5 x 2 = 13m Therefore, length of ladder is 13m. |
