Question

. In a parallelogram PQRS, if ∠P = 60°, then other three angles are (a) 45°, 135°, 120° (b) 60°, 120°, 120° (c) 60°, 135°, 135° (d) 45°, 135°, 135°

Answer 1

Answer:

b) 60, 120, 120

Step-by-step explanation:

In a Parralellogram , Opposite angles are equal (angles "P" are the same, and angles "R" are the same), and two adjacent angles add upto 180.

The sum of all angles is 360

So we know, P=60, so R =60, so Q+R = 240, and as discussed above Q=R, so the angle is 240/2= 120