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Answer:
angle a +b+c =180
angle a=b+c
angle a+a=180
a=90
Step-by-step explanation:
ahmad90:
wronggggg
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Solution :
Let x , y , z are three angles of a triangle.
x + y = z [ given ] ---- ( 1 )
We know that,
x + y + z = 180° [ angle sum property ]
=> ( x + y ) + z = 180°
=> z + z = 180° [ from ( 1 ) ]
=> 2z = 180°
=> z = 180°/2
=> z = 90°
Therefore ,
In a triangle one angle z = 90° ,
it is a right angled triangle.
•••••
Let x , y , z are three angles of a triangle.
x + y = z [ given ] ---- ( 1 )
We know that,
x + y + z = 180° [ angle sum property ]
=> ( x + y ) + z = 180°
=> z + z = 180° [ from ( 1 ) ]
=> 2z = 180°
=> z = 180°/2
=> z = 90°
Therefore ,
In a triangle one angle z = 90° ,
it is a right angled triangle.
•••••
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