Question

A quadrilateral has three angles that measure 74°, 84°, and 100°. Find the unknown angle measure.
109°
95°
204°
102°

Answer 1

Answer:

102⁰

Step-by-step explanation:

we know, sum of all angles of a quadrilateral is 360⁰.

given, 74⁰, 84⁰, 100⁰

74+84+100+ x = 360⁰

258+ x=360

x = 360-258

x = 102⁰

so, the unknown angle is 102⁰