Question

please help me in this question

Answer 1

Hi Mate!!!

3)

30° + 40° + Z = 180°. ( Angle sum property)

Z = 180° - 70°

Z = 110°


Y + Z = 180 ( Because sum of Y + Z makes a straight line)

2) Y = 180 - Z

Y = 180 -110

Y = 70°

1)

X + Y + 80° = 180 ( Angle sum property)

X = 180° - 150°

X = 30°


Have a great future ahead!!!

Answer 2

Angle ABC is a triangle
in triangle ABD
angle BAD + angle ABD + angle ADC = 180 ( by sum of all angle of a triangle)
30 +40 + z = 180
70 + z = 180
z = 180 - 70
z= 110 degree

BC is a straight line
angle ADB + angle ADC =180 ( linear pair property)
110 + y = 180
y = 180 - 110
y = 70 degree

in triangle ADC
angle DAC + angle ADC + angle ACD = 180 ( sum of all angle of a triangle)
x + 70 + 80 = 180
x + 150 = 180
x = 180 - 150
x = 30