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Sagot :
Answer:
x=60
Step-by-step explanation:
The sum of interior angles of a regular Pentagon is 540°
x+2x+2.5x+x+10+2x+20=540
8.5x=540-30
8.5x=510
x=510/8.5=60
Answer:
- x = 60°
Step-by-step explanation:
Sum of interior angles of a regular polygon is:
- 180°(n-2)
Pentagon has 5 sides, so sum of angles is:
- 180°(5-2) = 180°*3 = 540°
For the given pentagon we have sum of angle measures as below, and solving for x:
- x + 2x + 2.5x + (x +10) + (2x + 20) = 540°
- 8.5x + 30° = 540°
- 8.5x = 510°
- x = 510°/8.5
- x = 60°
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