Prove that the opposite angles of an isosceles trapezium are supplementru.
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i think if u have studied about isosceles trapezium then u should know that there is a property of of it that adjacent angle are equal .
suppose there is isosceles trap. ABCD
TO PROVE : A+C=180
PROOF : NOW AB||CD
AND angleA= angleB ; ANGLE C = ANGLE D [ property of isosceles trap. ]
as angle A + angle D= 180 [ consecutive int. angles ]
therefore angle A + angle C = 180 [ /_C = /_D]
#hence proved
hope this will help u ..... if yes then hit that #thanx button
suppose there is isosceles trap. ABCD
TO PROVE : A+C=180
PROOF : NOW AB||CD
AND angleA= angleB ; ANGLE C = ANGLE D [ property of isosceles trap. ]
as angle A + angle D= 180 [ consecutive int. angles ]
therefore angle A + angle C = 180 [ /_C = /_D]
#hence proved
hope this will help u ..... if yes then hit that #thanx button
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