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प्रश्न
The length of AC is ______.
विकल्प
22 m
38 m
23 m
45 m
MCQ
रिक्त स्थान भरें
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उत्तर
The length of AC is 38 m.
Explanation:
From figure,
BCDE is a rectangle.
∴ BC = DE = 8 m and BE = DC = 30 m.
We know that,
\[\tan \theta = \frac{\text{Perpendicular}}{\text{Base}}\]
From figure,
In △ ABE,
\[\Rightarrow \tan 45^\circ = \frac{AB}{BE}\]
\[\Rightarrow 1 = \frac{AB}{30}\]
⇒ AB = 30 m.
From figure,
AC = AB + BC = 30 + 8 = 38 m.
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