Answered

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?

A115/cos50 degrees
B115 cos 50
C115 tan 50
D115/sin 50

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 5 class=

Verified Answer :

Answer: 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.

Answer:

115 tan 50

Step-by-step explanation:

Related Questions