Question

please Solve one of these​

Answer 1

Answer:

d) 10e 22

22 e

5

d) 10e 22

22 e

5

Answer 2

Step-by-step explanation:

Given :

One of the exterior angles of a triangle is 80°.

Interior opposite angles are in the ratio 5 : 3.

To find :

Angles of the triangle.

Solution :

We know in a triangle,

=> Exterior angle = sum of interior opposite angles

We have,

=> Interior angles in the ratio 5 : 3,

=> Let the angles be 5x and 3x.

Now,

=> 5x + 3x = 80°

=> 8x = 80°

=> x = 10°

Hence the angles are,

=> 5x = 5(10) = 50°

=> 3x = 3(10) = 30°

Verification :

Exterior angle = Sum of opposite interior angles

=> 80° = 50° + 30°

=> 80° = 80°

=> L.H.S = R.H.S

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