Question

Please answer I have an exam

Answer 1

Answer:

Given,

a=90

=>b=180-90=90(linear pair of angles sum=180)

=>c=90(corrensponding angles property)

=>d=90(corrensponding angles property)

Hope it helps you.

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Answer 2

Answer:

all angles are 90 degree

Step-by-step explanation:

AB parallel to CD given

EF is the transversal given

A

angle A is 90 degree given

So A=C I.e 90 degree

C+D=180

=90+D=180

so angle D is 90 degree

and D =B I.e 90 degree