Question

If ∠A and ∠B are two adjacent angles of a parallelogram. If ∠A = 70°, then ∠B = ?

The adjacent angles of parallelogram are supplementary.

__________________

∠B = 110°

a) Angle A + Angle B=180°

. b) Angle A + Angle B=90​

Answer 1

Answer:

110°

Step-by-step explanation:

angle A× angle B=180°

so 70°+angleB=180°

angle B=110°

Answer 2

Given : ∠A and ∠B are two adjacent angles of a parallelogram.  ∠A = 70°,

To Find : ∠B = ?

Solution:

∠A and ∠B are two adjacent angles of a parallelogram

Sum if measures of adjacent angles of a parallelogram = 180°

( as adjacent angles of a parallelogram are supplementary )

as they are co  interior angles

m∠A + m∠B = 180°

Substitute m∠A  = 70°

=>   70° + m∠B = 180°

=>  m∠B = 180° -    70°

=> m∠B = 110°

Measure of angle B is 110°

Learn More:

The adjacent angles of a parallelogram are (2x - 4)⁰ and (3x – 1)⁰ ...

brainly.in/question/1346257

the measure of one of the angles of a parallelogram is 130 degree ...

brainly.in/question/3367975

Two adjacent angles of a parallelogram are (2y+100) and (3y-400 ...

brainly.in/question/12577329