Question

in parallelogram ABCD,measure of angle B=80°,measure of angle C=45°,find measure of angle D​

Answer 1

Answer:

For a parallelogram ABCD

∠A=∠C

∠B=∠D

∠A+∠B+∠C+∠D=360

∘

∠A=45

∘

(given)

∠C=45

∘

45+2∠B+45=360

∠B=∠D=135

o

Answer 2

Answer:

we know that opposite angles of a parallelogram is equal

So, angle B=D(80°)