Q25 of 153 Page 148

In the given figure, AB || CD. If ∠APQ = 70° and ∠PRD = 120°, then ∠QPR = ?

APQ =PQR =70^o

Now, in triangle PQR, we have

PQR + PRQ + QPQ =180^o

70 + 60 + QPQ =180^o

QPQ =180^o – 130^o

=50^o

In the given figure, AB || CD. If ∠AOC = 30° and ∠OAB = 100°, then ∠OCD = ?

In the given figure, AB || CD. If ∠CAB = 80° and ∠EFC = 25°, then ∠CEF = ?

In the given figure, x = ?

If 3∠A = 4∠B = 6∠C, then A : B : C = ?