Question

In triangle PQR, right angled at Q, if QR = 5 cm, PQ = 12 cm, find all the six trigonometric ratios of angle R.

Answer 1

Answer:

Cos R=0.384615384615

Step-by-step explanation:

We are given a right angled triangle PQR

PQ = 12 cm

QR = 5cm

PR = hypotenuse

Refer the attached figure .

To Find length of hypotenuse , we will use Pythagoras Theorem .

Now to find Cos R we will use trigonometric ratio :