Answer:
Step-by-step explanation:
we know it has a right angle 90° so
Traingle = 180°
90° - 180° - 90°
There are two sides that must add up to 90°
Hope it helps
34.8°
[tex]\frac{SinA}{4}[/tex] = [tex]\frac{Sin90}{7}[/tex]
SinA = [tex]\frac{Sin90}{7}[/tex] x 4
SinA = [tex]\frac{4}{7}[/tex]
[tex]Sin^{-1}[/tex] [tex](\frac{4}{7} )[/tex] = 34.84990458
