Question

From the triangle find angle BCA.
when angle ABC=60 Degree
angle CAB = 90 Degree

find angle BCA​

Answer 1

Answer:

sum of interior angle of triangle is 180 so angle ABC+CAB+BCA =180 DEGREE

60 DEGREE+90 DEGREE+ BCA =180 DEGREE

150 DEGREE +BCA =180 DEGREE

BCA=180-150

BCA =30 DEGREE