Question

Can someone please help me

Answer 1

angle A=30°

angle B=60°

angle C=90°

Explanation:

given : A=30°,C=90° the mark states it is 90°

find :C=?

A+B+C=180°

30°+90°+x°=180°

=120°+x°=180°

=120°-120°+x°=180°-120°

=x°=60°

Answer 2

a.30
b.60
c.90
must be 180