Mathematics: The picture below shows a portion of a river dam: which of the following can be used to calculate the height of the river dam? a) 115/cos50 degrees b) 115 cos 50 c) 115 tan 50 d) 115/sin 50

The picture below shows a portion of a river dam:

Aubreigh29

08.01.2022

Option 'C' is correct.

Step-by-step explanation:

Since we have given that

Distance between dam to the angle of elevation = 115 m

Angle of elevation = 50°

We need to find the "Height of river dam":

We will use "Trigonometric Ratio":

$\tan 50^\circ=\frac{Perpendicular}{Base}\\\\\tan 50^\circ=\frac{Height}{115}\\\\115\tan 50^\circ=Height\\\\137.05\ m=Height$

Hence, Option 'C' is correct.

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shred360

25.08.2020

C.65

Step-by-step explanation:

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