Question

10. If the angles of a triangle are (2x – 30), (3x - 50) and (x +20)°; find the value of x and
angles of the triangle.
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Answer 1

Answer:

x=40

Step-by-step explanation:

sum of angles of a triangle=180°

(2x-30)+(3x-50)+(x+20)=180

6x-60=180

x=240÷6=40°

angles=50°,70°,60°

Answer 2

Answer:

50°,70° and 60°.

Step-by-step explanation:

The sum of three angles of the triangle is 180°.

So, as there are three angles given, just add these and write equal to 180°.

=>(2x-30)+(3x-50)+(x+20)=180°

=>6x-60=180

=>6x=240

=>x=40°

Put the value of x in the given 3 angles.

Then, the three angles of the triangle will be

50°, 70° and 60° respectively.