Question

The angle of a triangle are (x+21)degree , x degree and (2x - 45)dgree find the value of x.
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Answer 1

Answer:

x= 51

Step-by-step explanation:

sum of all angles in any triangle = 180°

(x+21)+(x)+(2x-45)=180

x + 21 + x + 2x - 45 = 180

4x - 24 = 180

4x = 180 + 24

4x = 204

x = 204/4

x= 51

HOPE THIS WILL HELP YOU!

Answer 2

x= 51

Step-by-step explanation:

angle sum property of triangle,

x + (x +21) + (2x -45) =180°

x + x+21 + 2x -45 = 180°

4x -24= 180°

$x = \frac{180 + 24}{4}$

x = 39

and i51you want angles ,

x = 51°

x + 21 = 51 + 21 =72°

2x -45 = 2(51) -45 =57°

hope helps.

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