Question

1 poin
9. The three angles of a
quadrilateral are 110°, 80º, 116° .
find the measure of the fourth
angle.​

Answer 1

Answer:

$\boxed{\bf The \ measure \ of \ fourth \ angle \ = \ 54^0}$

Step-by-step explanation:

$given \ angles \ are \ 110^0,80^0,116^0 \\ let \ the \ other \ angle \ be \ x \\\\ \text{The sum of all angles in a quadrilateral = 360} ^0 \\\\ => 110^0+80^0+116^0+x=360^0 \\306^0+x=360^0 \\x=360-306\\x=54^0 \\\\ .'. \ the \ measure \ of \ fourth \ angle \ = \ 54^0$