Question

One of the exterior angles of a triangle is 153° and the interior opposite angles are in the ratio 5:4. Find the
three interior angles of the triangle.

Answer 1

Answer:

We know that exterior angle = sum of opposite interior angles.

Step-by-step explanation:

So 5:4.

Taking x constant, we get,

5x+4x=153 degrees

9x=153 degrees.

Therefore, x=17

Therefore,angles are 85 and 68 degrees.

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Answer 2

Step-by-step explanation:

one of the exterior angles of a triangle =153°

interior opposite angles are in the ratio =5:4

interior angles of the triangle =?

first angle=5x

second angle=4x

5+4=153°

9x=153°

x=153°/9

x=17°

5×17=85°

4×17=68°

the two angles sum =85°,68°

I hope this sum is some what difficult