Question

in fig 4,ABCD is a parallelogram in which angle ADC=60 and angle ACB=70.find the measures of angle DCB,angle CAB and angle DAC

Answer 1

Answer:

FOR ANGLE DCB:-

as we know sum of two adjacent angles of parallelogram =  180

=> 60+70+x=180

    130+x = 180

x = 180-130

x = 50

hence angle DCB = 50+70= 120 DEGREE

FOR ANGLE DAC:-

angle DAC = 70 degree (interior angle of parallelogram)

FOR ANGLE CAB:-

angle CAB = 50 DEGREE (interior angle of parallelogram)

SOLVED........

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