Question

in triangle ABC,if angle A: angle B: angle C=2:5:2 then find all angles of triangle ABC. please mention proper steps

Answer 1

Step-by-step explanation:

Let the angle A be 2x, angle B be 5x, and angle C be 2x

then,

we know that the sum of all angles of a triangle is 180degree

2x+5x+2x= 180 degree

9x= 180 degree

x= 20 degree

Now,

angle A= 2x

= 2*20 degree

= 40 degree

angle B = 5x

= 5* 20 degree

= 100 degree

angle C = 2x

= 2*20 degree

= 40 degree

MARK AS BRAINLIST

Answer 2

Step-by-step explanation:

Let the angles be 2x,5x,2x.

sum of all angles = 180 degree

2x + 5x + 2x = 180 degree

9x = 180 degree

x = 180/9 degree

x = 20 degree

=) 2x = 20*2 = 40 degree

5x = 20*5 = 100 degree

2x = 20*2 = 40 degree

plz mark it brainlist