Question

find the value of a​

Answer 1

Step-by-step explanation:

90+5a+10+2a+5+3a+15= 360. total sum angles of a qurdilateral

120+ 10a = 360

10a= 240

a= 24°

mark as brainliest and follow me

Answer 2

Answer:

Step-by-step explanation:

sum of all interior angle of quadrilateral = 360°

90°+(5a+10°)+(3a+15°)+(2a+5°)=360°

90°+10°+15°+5°+5a+3a+2a=360°

120°+10a=360°

10a=360°-120°

10a=240°

a=24°