Question

Find the angle a. And the angle on the side b.

Answer 1

Answer:

we know that sum of angles of any quadrilateral is 360°

angle A+angle B+ angle C +angle D=360

90°+110°+80°+angle D=360°

280°+angle D=360°

angle D=80°

hope it helps you......✌✌

Answer 2

Answer:

• Here it is.....................!
• We can see that it's a quadrilateral which means sum of its angles will be 360°.
• Now, /_ABC= 180-70= 110°
• /_ ADC= 80 (Already given)
• /_BAD= 90° (given)
• Now, 90+110+80+a= 360
• a= 360- 280=80