Question

three angles of a quadrilateral are 100 degree, 90degree and 110degree what is the fourth angle
options are:
a) 30degree
b)120 degree
c)160degree
d)60 degree​​

Answer 1

Step-by-step explanation:  Given,

= 100°

= 90°

= 110°

To find,

Knowledge Required,

The sum of all the interior angles of a quadrilateral is 360°.

Finding  :

+  +  +  = 360°

⇒100° + 90° + 110° +  = 360°

⇒300° +  = 360°

⇒ = 360° - 300°

⇒ = 60°

.°.  = 60°

Hence, option d) 60° is the correct answer.

Answer 2

Answer:

160 degree is the answer

Step-by-step explanation:

fourth angle is 160