Question

One of the exterior angles of a triangle is 72 degree and its interior opposite angles are in the ratio 4:5. The angles of the triangle are​

Answer 1

Answer:

72 degrees = 4x+5x

9x=72

x=8

4x=32

5x=40

other angle is:

40+32+y=180

72+y=180

y=108

Step-by-step explanation:

therefore, the angles are 32,40,108 degrees

Answer 2

interior angle =180-72

=108

let x be common in ratio 4:5

so sum of angles of triangle is 180

4x+5x+108=180

9x=72

x=8

4x=32

5x=40

Angle of triangles are 108,40,32

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