Question

31) The angles of a triangle are in the ratio
3:5:7. The triangle is​

Answer 1

Answer:

let the angles be x then

it will be 3x,5x,7x

sum of all angles of triangle is 180.

therefore,3x+5x+7x =180

15x=180

x=180/15

x=12

so,now 3x=3x12=36

5x=5×12=60

7x=7×12=84

so triangle is acute angled