Question

Three angles of quadrilateral ate in ratio 3:5:7.The mean of these angles is 75.Find all of the angles

Answer 1

Answer:

45,75,105,135

Step-by-step explanation:

mean of 3angles=75

sum of 3 angles=3*75=225

3angles are in ratio of 3:5:7

3angles are 225/15*3,225/15*5,225/15*7

3angles are 45,75,105

sum of angles in a quadrilateral are360

45+75+105+y=360

225+y=360

y=135