Question

Find angle B and angle c of a parallelogram ABCD. If angle B= (4x-5)° and angle D= (3x+ 10)°​

Answer 1

Step-by-step explanation:

In ∥gm opposite angles are supplementary.

Therefore,

∠B+∠D=180

∘

2x+25+3x−5=180

∘

x=

5

180−20

=32

∠B=2x+25=(2∗32)+25=89

∘

∠D=3x−5=(3∗32)−5=91

∘