4/10 is also equal to 2/5 and 2+2 equals four therefore you would get 4/5 as your final answer
1. c
2. b
3. a
hope this helps
The height of the statue is 19.5 feet.
Why?
We can solve the problem using trigonometric formulas. In this case, we are going to use the trigonometric formula of the tangent.
We know that the person is standing 50ft from the statue, so, it will be the base of the two triangles formed by both angles (elevation and depression)
Using the trignometric formula, we have:
First triangle:

Second triangle:

Now, the total height of the statue will be:

Have a nice day!
The total amount of degrees in a triangle is 180. All three angles should add up to 180˚
We know that 40+60 = 100
The next step is to do 180-100 to get the other angle.
180-100 = 80
So the measure of the third angle is 80˚
Hope this helps!
(Also if you want to do this in one equation, you would do 40+60+x = 180
40+60+x = 180
100+x = 180 (combine like terms)
x = 80 (Subtract 100 from both sides)
X = 2 expand the brackets and then collect like terms (x's on one side) and then dived to get x on its own! :)