Question

Three angles of a quadrilateral are 3:5:8.The mean of these angles is 80degree.Find all the four angles of the quadrilateral​

Answer 1

let angles be x thrn it will becomes that 3x+5x+8x/2=89

Answer 2

Step-by-step explanation:

Let angles be a,b,c & d rresp

a/b

= 5/3

,

c

b

=

8

5

Now,

3

a+b+c

=80⇒

3

(3b/5)+b+(8b/5)

=80

⇒(166/5)=240⇒b=75

0

So, a=45

0

,c=120

0

&d=360−(a+b+c)

⇒d=120

0