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class 9
maths
lines and angles
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Answer :
Given that,
x+y=w+z
R.T.P. AOB is a straight line
Now,
angle x + angle y + angle w + angle z = 360°
=>angle x + angle y + angle x + angle y = 360°
( because,angle x + angle y = angle w + angle z )
=>2 × angle x + 2 × angle y = 360°
=> 2 ( angle x + angle y) = 360°
=> angle x + angle y = 360°÷ 2 = 180°
Hence, It is proved that AOB is a straight line.
I think this will help you . THANKS.
Given that,
x+y=w+z
R.T.P. AOB is a straight line
Now,
angle x + angle y + angle w + angle z = 360°
=>angle x + angle y + angle x + angle y = 360°
( because,angle x + angle y = angle w + angle z )
=>2 × angle x + 2 × angle y = 360°
=> 2 ( angle x + angle y) = 360°
=> angle x + angle y = 360°÷ 2 = 180°
Hence, It is proved that AOB is a straight line.
I think this will help you . THANKS.
Subhalaxmi72:
Thanks for marking the answer as Brainlist ans
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