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1.complete the column of proof

given < B=<D, m<b=80
prove <c=100
2.complete the paragraph proof
GIVEN<a  a=and <b are complementary and <b  and <c are complementary proof <a =<c

1 Answer

6 votes

The first question probably has a drawing that is not included. Can you please include whatever drawing cam with it?

The Qeustion 2:

starting with writing the complementary angles:

The angles <a and <b being complementary means that

<b = 180 - <a

The angles <b and <c are complementary - that means

<c = 180 - <b

now plug in the first equation for <b to get:

<c = 180 - (180 - <a) = 180-180+<a= <a

so

<c = <a

which was to be proved!

User DMe
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