ABCD is a trapezium in which AB//DC. If angle A = 55 desgree and angle B = 70 degree find angle C and angle D

we know that in a trapezium, the sum of adjacent angles in 180,

so, A+C = 180

     C= 125

SIMILARLY, ANGLE D = 110

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ab parallel to cd
ad is the transversal
so,
a+d=180
d=180-55
d=125
similarly
when cb is the transversal
c+b=180
c=180-70
c=110

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Nilesh vishnoi

  • -5
In the given figure,ABCD is a trapezium in which AB//DC and A=55 and B=70 So,A+D=180 =?D=180-A =?D=(180-55)=125 Similarly,C+B=180 =?C=180-B =?C=(180-70 )=110 theirfore, C=110 and D=125

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