For this case we have by definition of trigonometric relations of rectangular triangles that, the sine of an angle is given by the opposite leg to the angle on the hypotenuse of the triangle. Then according to the figure we have:

$Sin (40) = \frac {CA} {7}$

We cleared CA:

$AC = 7 * Sin (40)$

Answer:

Option A

7 0

4 years ago

Which statement best explains how to find the area of the kite?

eimsori [14]

I think it is a D I'm not really sure

3 0

2 years ago

Which calculations perform on the calculator will yelled in answer that is approximately the same as 76 ÷ 19/25? Check all that

Zinaida [17]

first：76 ÷ 19/25=100

a:80 / 20 * 1 / 25 =0.16

b:80 * 5/4 =100

c:80 / 5 ÷ 1 / 4 =64

d:80 * 5/4 =100

e:80 * 4/5 =64

So I think both B and D should be the right answer

6 0

4 years ago