the angles of triangles are 5x-10 degree,2x+40 degree and 3x-50 degree .the triangle is
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Answer:
(angle sum property) sum of all angles of triangle = 180°
(5x-10)+(2x+40)+(3x-50)=180°
5x-10+2x+40+3x-50= 180°
10x-20=180°
10x= 200
x= 20
therefore angles are ( by putting value of x).
5x-10= 5(20)-10= 100-10= 90°
2x+40= 2(20)+40= 40+40= 80°
3x-50= 3(20)-50= 60-50= 10°
check-
90°+80°+10°= 180°
180°=180°
l.h.s = r.h.s
hence proved.
therefore our calculation is correct.
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Concepts Required :
By Angle Sum property of triangle
- Sum of all angle in a triangle be 180° .
- i.e. angle A + angle B + angle C = 180°.
Solution :
Let's Sides of triangle be A, B ,C.
A/Q,
Now,
By Angle Sum property of Triangle.
Now, We have the value of x.
Let find there all sides,
And,
And,
Note : Diagram provide in attachment.
Attachments:
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