Question

find the unknown angle​

Answer 1

Answer:

c +40 =90

c=90- 40=50.......

Answer 2

Answer:

c=50,b=95

Step-by-step explanation:

right angle =90(sum of two angles in the quadrilateral is180°)

90=c+40

90-40=c

50=c.........

85+b=180(sum of two angles in the quadrilateral is180°)

b=95.......