Question

in traingle pqr angle p-angle q =42 ° and angle q -angle r =21°find pqr ​

Answer 1

Answer:

<P +<R +<Q = 180° { Angle sum property of ∆ }

42+ 21 + < Q = 180

63° + <Q = 180

< Q = 180 -63

< Q = 117