Answer:
4/5
Step-by-step explanation:
In a right triangle, the longest side is always the hypotenuse. Hence
Hypotenuse =5cm
The side opposite to the angle theta is the opposite, hence
Opposite = 4cm
Required
Sin theta
According to SOH CAH TOA
Sin theta = opposite/hypotenuse
Sin theta = 4/5
Hence the sine of the angle opposite the side of length 4cm is 4/5
