Question

Page
3. an a quadrilateral ABCD, the measure
of the three angles A, B and C of
the quadrilateral care 110 º 70 and
80 respectively. Find the measure
of the third angle.​

Answer 1

Answer:

100

Step-by-step explanation:

Use angle sum property of a quadrilateral

D = 360 - (110+70+80)

D = 100