prove that if one angle of a triangle is equal to the sum of the other to angles,then the triangle is right angle
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Answer:
The 3 angles add up to 180 degrees so if one of them is equal to the sum of the other two, it obviously has to be a right angle (90 degrees;) with the sum of the other 2 angles also equal to 90 degrees. It is a right angled triangle. ... So, B+C = 90 degree. Thus, the given triangle is a right triangle.
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Answer:
if 'x' is one angle and y and z are other two angles and x=y+z
then we know
x+(y+z)=180 degrees
x+x=180 degrees
2x=180 degrees
x=90 degrees
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and so we know that if a triangle have right angle then it is right angled triangle
HENCE PROVED!
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