Answer:
13. Sin<A = 77.3°
14. Tan<A = 77.3°
15. Cos<A = 77.3°
Step-by-step explanation:
From Trigonometry.
13.
[tex] \sin(a) = \frac{opposite}{hypotenuse} [/tex]
Sin<A =
40÷41
<A = sin-1 (40÷41)
<A = 77.3°
14.
[tex] \tan(a) = \frac{opposite}{adjacent} [/tex]
Tan<A= (40÷9)
<A = tan-1 (40÷9)
<A = 77.3°
15.
[tex] \cos(a) = \frac{adjacent}{hypotenuse} [/tex]
Cos<A = (9÷41)
<A = cos-1 (9÷41)
<A = 77.3°
