Question

maths chapter 12 class 8
my question is
We have one angle of a quadrilateral 15 nd we have to find it's three other angles ​

Answer 1

Step-by-step explanation:

The 4 angles add to 360, so if one is 15, then the other 3 add to 345. The average is then 115 degrees. So if they are in AP (=arithmetic progression) then the three angles are 115+d, 115, and 115-d, and the 4th “smallest” angle is 115–2d = 15. Then d=50, so the angles are 15, 65, 115, and 165.

Answer 2

Answer:

heya buddy you got your correct answer

Step-by-step explanation:

The 4 angles add to 360, so if one is 15, then the other 3 add to 345. The average is then 115 degrees. So if they are in AP (=arithmetic progression) then the three angles are 115+d, 115, and 115-d, and the 4th “smallest” angle is 115–2d = 15. Then d=50, so the angles are 15, 65, 115, and 165.