Question

Can 100° , 40° , 90° and 120° be the four angles of a quadrilateral ? Give reasons.​

Answer 1

calculate thief sum

100+40+90+20 = 250

no these cant be angle of a quadrilateral as their sum is not 360. angle aum property of quadrilateral states that all the interior angle should sum up to 360°

Answer 2

Answer:

We know,

Sum of all the angles in the quadrilateral = 360˚

Here,

$(100 + 40 + 90 + 120) \: degree \\ \\ = 350 \: degree$

So they are not the four angles of a quadrilateral.

Since they sum up-to only 350° .

hope u understand :)