Question

If ABCD is a parallelogram in which angle A =65° then find angle B

Answer 1

ANGLE B is equal to 180-65= 115 degree
As adjacent angles in a parallel add up to 180degree..... mark as brainliest

Answer 2

A parallelogram is a special name given to a quadrilateral. Such quadrilaterals have opposite sides equal and parallel.

In any parallelogram, opposite angles area always equal and two adjacent angles are always supplementary, which sums to 180°.

So,

In parallelogram ABCD, if $\bold{\angle}$A = 65° then the adjacent angle i.e. $\bold{\angle}$B must be it's supplement.

Therefore,

$\bold{\angle}$A + $\bold{\angle}$B = 180°
65° + $\bold{\angle}$B = 180°
$\bold{\angle}$B = 180° - 65°
$\bold{\angle}$B = 115°