Question

find the value of x and y in the given figure​

Answer 1

Answer:

Step-by-step explanation:

X=20 and y=80

Answer 2

Answer:

x= 30 degree and y = 40 degree

Step-by-step explanation:

In triangle ABD,

angle ADB = angle ABD (AD=AB)

therefore angle ABD = x

angle ADB + angle ABD + angle DAB = 180 degree (Angle Sum Property)

x + x + 120 = 180

2x = 180-120

2x = 60

x = 60/2

x = 30 degree

In triangle DCB,

angle BDC = angle DBC (DC=BC)

therefore angle DBC = 70 degree

angle BDC + angle DBC + angle DCB = 180 degree (Angle Sum Property)

70 + 70 + y = 180

140 + y = 180

y = 180 - 140

y = 40 degree