Question

In triangle abc right-angled at B cosA = 12/13 and AB = 60 cm, find the other sides of the triangle. ​

Answer 1

Answer:

Step-by-step explanation:

The ratio of CosA=12/13

But as ab=60 therefore

Multiplying numerator and denominator by 5.

Therefore ab=60 and ac=75

Hence by Pythagoras theorem we get bc=45

Answer 2

Answer:BC=25

Step-by-step explanation:

AC=65

BC^2=AB^2-AC^2

=60^2-65^2

=4225-3600

=625

BC=25