Question

In figure given below, Find the value of $\angle$1 +$\angle$2.

• A.

  180${}^{\circ }$

• B.

  190${}^{\circ }$

• C.

  270${}^{\circ }$

• D.

  Insufficient Data

Answer 1

The correct option is B

190${}^{\circ }$

$\angle$1 and 72${}^{\circ }$ & $\angle$2 and 98${}^{\circ }$ form two pairs of linear pair of angles and their sum is 180${}^{\circ }$.

Therefore,

$\angle$1 = 180 - 72 = 108${}^{\circ }$

$\angle$2 = 180 - 98 = 82${}^{\circ }$

$\angle$1 +$\angle$2= 190${}^{\circ }$