Question

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Answer 1

Answer:

for A) x=23

for D) x= 4

Step-by-step explanation:

3x+20 + 4x + 2x+18 + 5x = 360

3x + 4x + 2x + 5x + 20 + 18 = 360

14x = 360 - 38

14x = 23

3x+10 + 175 + 3x + 5x + 4x + 115 = 360

3x + 3x + 5x + 4x + 10 + 175 + 115 = 360

15x = 360-290

15x = 70

x = 4

Answer 2

Answer:

1] 23deg  2] 28deg

Step-by-step explanation:

Here u go ..

a] A quadrilateral's angles sum up to 360 degrees.

[3x+20deg] + 4x + [2x-18deg] + 5x = 360deg

= 14x + 38deg = 360deg

= 14x = 360 - 38deg

= 14x = 322deg

= x = 322/14

= x =23deg

Hence, the value of x in this figure is 23 degrees.

d] A hexagon's angles sum up to 720 degrees.

[3x+10deg] + 175deg + 3x + 5x + 4x + 115deg = 720deg

= 15x + 300deg = 720deg

= 15x = 720deg - 300deg

= 15x = 420deg

= x = 420/15

= x =28 degree

Hence, the value of x in this figure is 28 degrees.

Hope this helped ya