Question

If LMNO is a parallelogram then angle L and angle N is a) 90 b) 0 c) 180 d) 360

Answer 1

Answer:

90

Step-by-step explanation:

Answer 2

Answer:

Thus, we have:

∠A + ∠B = 180°

Also,

∠A = x° and ∠B = (3x + 20)°

⇒ x° + 3x° + 20° = 180°

⇒ 4x° + 20° = 180°

⇒ 4x° = 160°

⇒ x° = 40°

⇒ x = 40

We know that opposite angles of a parallelogram are congruent.

Thus, we have:

∠C = ∠A = x°

⇒∠C= 40°

∠D = ∠B

⇒  ∠D     = 3x° + 20°

                = 3(40°) + 20°

                = 120° + 20°

                = 140°

Step-by-step explanation: