The angles of a triangle are x.y and 40°.The difference between two angles x and y is 30°. Find x and y
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Answer:
x=85°, y=55°
Step-by-step explanation:
the three angles of triangle are x,y,40°
by angle sum property ( sum of all the angles of a triangle is 180°),
x+y+40°=180°
x+y=140° ----------- i
now given,
x-y=30° --------- ii
on solving i & ii by adding ;we get
x+y=140°
x-y=30°
______
2x= 170°
x=85°
y= 140°-85°(from eqn i)
y=55°
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