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3 years ago

8

What is the measure of 78°

1 answer:

artcher [175]3 years ago

4 0

Answer:

51

∘

and

129

∘

Explanation:

Angles that are supplements sum to

180

∘

.

This means if one angle is called

A

∘

, the other angle is

(

A

−

78

)

∘

A

+

A

−

78

=

180

2

A

−

78

=

180

2

A

=

258

A

=

258

2

=

129

∘

A

−

78

=

129

−

78

=

51

∘

Step-by-step explanation:

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