ihatelifesomuxh ihatelifesomuxh

02-12-2020
Mathematics

contestada

U
(3x -9)
30°
240
w
What is the value of x?
1.
21
2.
39
3
45
4
126

U 3x 9 30 240 w What is the value of x 1 21 2 39 3 45 4 126 class=

Respuesta :

tasni109 tasni109

02-12-2020

Answer:

option 3, 45

Step-by-step explanation:

3x - 9° + 30° + 24° = 180° (angle sum property of a triangle)

3x - 9° + 54° = 180°

3x + 45° = 180°

3x = 180° - 45°

3x = 135°

x = 135/3

x = 45°

therefore, option 3 is the correct option

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