find the value of unknown angle in the following diagram
please answers me it's important
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1
Answer:
a. x+x+x = 180
3x = 180
x = 60°
b. 35+x = 75. ( exterior angle property)
x = 75-35 = 40°
c. x = 30+40
x = 70°
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Answered by
1
Answer:
first figure shows all angles are x means all angles are equal ,
sum of all angles of triangle=180°
x + x + x = 180°
3x =180°
x = 180°/3
x = 60°
in second figure as per exterior angle property
sum of two adjacent angles is equal to exterior angle
75° = 35° + x
75° - 35° = x
x = 40°
in third figure sum of adjacent interior angles is equal to exterior angle
x = 30° + 40°
x =70°
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