Answer:
Sin theta =4/5
Step-by-step explanation:
Cos theta=base/HYPOTENUSE=3/5
Hence
From here we get
Base=3,HYPOTENUSE =5
By Pythagoras theorem
Hypotenuse ²=base²+perp²
5²=3²+perpendicular²
25=9+perp²
Perp²=25-9
Perp ²=16
Perp=4(taking sq root on both sides)
Now
Sin theta=perp/hyp=4/5
