Question

A quadrilateral has three angles that measure 74°, 84°, and 100°. Find the unknown angle measure

Answer 1

Answer:

By angle sum property of a quadrilateral, 

sum of all the interior angles=360∘

Let x be the fourth angle.

∴48∘+85∘+140∘+x=360∘

∴x=360∘−273‬∘=87∘ 

Answer 2

Step-by-step explanation:

102 degree is the answer