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In a pentagon the measure of 4 angles are 2x°,3x°,4x°,5x° and the fifth angle measures 120°.find all the angles?​

Can anyone planning help I really need help!!

2 Answers

4 votes

Given:

A pentagon with one of the angle measuring 120°

To find:

The measure of rest of the angles (2x,3x,4x&5x)

Solution:

We know that the measure of sum of all the angles in a pentagon = 540°

.°.

  • 120°+2x+3x+4x+5x = 540°
  • 120°+14x= 540°
  • 120°-120°+14x = 540°-120°
  • 14x = 420°
  • x = 420°/14
  • x=30

.°.

2x


2x = 2 * 30 = 60

3x


3x = 3 * 30 = 90

4x


4x = 4 * 30 = 120

5x


5x = 5 * 30 = 150

Hope it helps

-------☆゚.・。゚ᵴɒƙυᴚᴀ_ƨȶäᴎ❀

User Elion
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4.9k points
4 votes


\huge{ \mathfrak{  \underline{ Answer} \:  \:  ✓ }}

Angles of Pentagon are :

  • 60°

  • 90°

  • 120°

  • 150°

  • 120°

_____________________________


\mathrm{ ☠ \: TeeNForeveR \:☠ }

In a pentagon the measure of 4 angles are 2x°,3x°,4x°,5x° and the fifth angle measures-example-1
User Hkurabko
by
3.9k points