Question

The picture shows a portion of a river dam.

Answer 1

What do we have to find ?

Answer 2

What is the height, in meters, of the river dam?

Answer 3

We will use the Cos function

Answer 4

a. 220/tan 40 degrees
b. 220 cos 40°
c. 220 /cos 40 degrees
d. 220 sin 40°

Answer 5

@Nurali

Answer 6

cos 40 = height of dam / 220
0.76604444311 = height of dam / 220
height of dam = 220 * 0.76604444311
height of dam = 168.529777484 m . So the answer b is corrrect

Answer 7

I think that answer b. would be correct.

Answer 8

@Nurali

Answer 9

ok i just need someone else to check and see if you are correct but thanks!!

Answer 10

Thanks guys really appreciate it!!

Answer 11

I am in grade 9 , covered this thing last term . Am 100 % confirm that I 'm right ! :D Do me as the best response if you like !

Answer 12

I am in 7th grade and I know that it is the right answer.