how to find the value of x in the
figure in Geometry chapter plz give me solution fast
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total angle of a quadrilateral is 360
total angle of a Pentagon is 540
total angle of a Pentagon is 540
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Hey dear here is your answer!!!!!
___________________________
Lets solve each one of them one by one:-
(a) This polygon has 4 sides. So, it is a quadrilateral.
Therefore, the sum of its angles is 360°.
According to question:-
(x - 10°) + (x - 20°) + (x - 35°) + (x + 25°) = 360°
x - 10 + x - 20 + x - 35 + x + 25 = 360
Add the like terms:-
4x - 40 = 360
Transposing:-
4x = 400
x =
x = 100
(B) It is also a quadrilateral.
Find the missing angle using angle sum property. It would be 60°
According to question:-
60 + 2x + x + x + 20 = 360
4x + 80 = 360
4x = 280
x =
x = 70°
(C) It is a pentagon. Sum of its angles is 540°
According to question:-
x + x + 7 + x + 9 + x + 12 + x + 22 = 540
Add the like terms:-
5x + 50 = 540
5x = 490
x =
x = 98
❣️⭐ Hope it helps you dear...⭐⭐❣️❣️
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