Question

find the unknown angles​

Answer 1

Answer:

105

Step-by-step explanation:

angle 80= angle P ( vertically opposite angles )

angle PRQ = 180-angle x ( liberation pair

angle PQR = angle PRQ ( angles opposite to equal sides are equal)

angle P + angle Q = x ( exterior angle property of a triangle)

80 + 180 - x = x

2x = 260

x= 130

question 2 angle B = angle C ( sides opposite to equal sides are equal)

angle C = angle B = 180 -y ( linear pair)

30 + 180 - y = y

210 = 2y

y= 105

Answer 2

Answer:

x=65

as alternate interior angles are equal

angleBCA=65+75+y=180

=140+y=180

y=40

amgleECD=110+65+z

=175+z=180

=z=5

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