Question

ABCD is a parallelogram. Find the value of X and y.​

Answer 1

angle CDB=[y=50°]( alternate angles )

angle DAC=angle BCA =70°(alternate angles )

(diagonals of parallelogram bisects each other at O)

in triangle BOC,

angle B +angle C +angle O=180°

70+x+90=180

x=180-160

[x=20°]

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Answer 2

Answer:

Step-by-step explanation:

(x+y) = 9cm ...............eq¹

(x-y) = 5cm .............eq²

On subtracting eq¹ and eq²

x+y = 9

x-y = 5

(-) (+) (-)

----------------------------

2y = 4

y = 4/2

= 2

On substituting the value of y in eq¹

x+y = 9

x +2 = 9

x = 9-2

= 7

The value of x= 7cm

Value of y = 2cm