Question

1. AB is parallel to CD o find the unknown angles giving reasons
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Answer 1

Answer:

z+70=180,then, Z=110⁰

similarly in other side, we find Angle to left of y using same method,then that angle will be 180-105=75⁰

then, y+70⁰+75⁰=180⁰, then,

y=35⁰

Answer 2

Step-by-step explanation:

angle ayc = 180°(linear pair)

70°+x+x = 180

2x =180-70

=110

x =110÷2

=55

so angle y =55

next angle 105+x =180(linear pair)

x = 180-105

=75

angle z =sum of two interior angles = exterior angle

75+55 =130

so anglr z = 130°

and the third interor angle =

75°+55°+x=180°

130+x =180°

x =180°-130°

=50°

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