# In the given figure, find the value of x: the numbers are 2x, 40 and 5x.SORRY I WON'T BE ABLE TO SEND THE FIGUREURGENT PLEASE!!!

2
by Yasmin
thanks a lot dear :D
Welcome :D
Sure :)
I am eager to do so :D

2014-08-21T12:01:05+05:30

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Well, it seems these numbers are referring to the Angles in a triangle.

So they sum to 180 deg

2X + 40 + 5X = 180
7 X = 140
X = 20 degrees

2014-08-21T12:49:18+05:30

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We know that angles of a triangle add up to 180° or the the perimeter of a triangle is the sum of all its sides so According to problem,

2x + 40 + 5x = 180
⇒   7x + 40 = 180
⇒        7x = 180-40
⇒        7x = 140
⇒          x = 140/7
⇒          x = 20

Therefore x is equal to 20°.

.·.  Measure of each angle=
1st angle = 2x = (2×20)° = 40°
2nd angle = 40°
3rd angle = 5x = (5×20)° = 100°