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snow_tiger [21]
3 years ago
15

(a) An angle measures 129º. What is the measure of its supplement?

Advanced Placement (AP)
1 answer:
choli [55]3 years ago
8 0

Answer:

a) Measure of supplement of 129 deg. = 51 deg.

b) Measure of complement of 43 deg. = 47 deg.

Explanation:

a) A pair of supplementary angles is pairs of angles that measure up to 180 deg.

Let the measure of the unknown supplement be 'x'

⇒129+x=180

⇒x=180-129=51.

b) A pair of complement angles is a pair that measure to 90 deg. when added.

Let the unknown angle be 'x'

⇒ 43+x=90

⇒x=90-43=47

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