Question

∠A and ∠ B are adjacent angles of a parallelogram. If ∠ A = 70^0, then ∠ B = __________​

Answer 1

Answer:

110°

Step-by-step explanation:

A+B=180°......(Adj Angles kf a ||gm are supplementary)

70°+B=180°

B=110°

Answer 2

∠B is of 110°.

Step-by-step explanation :

Given:-

• ∠A and ∠ B are adjacent angles of parallelogram.
• ∠A is 70°.

To find:-

• Measure of ∠B

Solution:-

We know that,

Sum of two adjacent angles of parallelogram is 180°.

So,

➝ ∠A + ∠B = 180°

➝ 70° + ∠B = 180°

➝ ∠B = 180°- 70°

➝ ∠B = 110°

Therefore,

∠B is of 110°.

____________________

More information:-

• Opposite angles of parallelogram are equal.

• Sum of all angles of parallelogram is 360°.

• Pair of opposite sides of parallelogram are equal.

• Pair of opposite sides of parallelogram are parallel.