Question

Quadrilateral ABCD is a parallelogram with < BCA= 50 , < DCA=60, find value of

Answer 1

`ADC = 70`

Explanation:

Given

`BCA = 50`

`DCA = 60`

See attachment for parallelogram and complete question

Required

Find ADC

From the attachment:

`BCD = BCA + DCA`

`BCD = 50+60`

`BCD = 110`

Adjacent angles add up to 180.

So:

`ADC + BCD = 180`

`ADC = 180-BCD`

`ADC = 180-110`

`ADC = 70`