Question

The adjacent sides of a right angle triangle are 5cm and 12cm respectively . calculate the smallest angle of the triangle. How to solve it.​

Answer 1

22.6 degrees

Step:

The hypotenuse is 13cm using pythagoras theorem.

Now, finding the smallest angle is by using;

SOH

sin = opposite over hypotenuse

Thus, cos^-1 (12/13)

=22.61

and equals to 22.6 (1d.p）