Question

plzz help me explane in steps​

Answer 1

YOUR ANSWER........................
1and 2.IN ATTACHMENT

Answer 2

Answer 1:

here, we know ∠5x+1 and ∠5x forms linear pair.

∴(5x+1)+(5x)=180

10x=179

x=17.9

Answer 2:

here,we know sum of the interior angles in a triangle is 180°.    →(i)

as, the angles are in the ratio 4:3:2,

let us assume that the angles are 4x , 3x and 2x.

from (i),

4x + 3x + 2x  = 180

9x                  =180

x                    =20

∴ 1st angle   =   4×20   = 80°

  2nd angle =   3×20   = 60°

  3rd angle  =   2×20   = 40°

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