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Yuki888 [10]
3 years ago
9

angle H and angle D are supplementary. If angle H has a measure of 128 degrees, find the measure of angle D

Mathematics
2 answers:
aev [14]3 years ago
5 0

Answer:

angle D=52 degree

Step-by-step explanation:

In supplementrary angles sum of two angles is always 180 degree

angle H +angle D=180 degree (since they are supplementary angles)

sbstitute the value of H

128 + angle D=180

angle D=180-128

angle D=52 degree

therefore angle D is 52 degree.

Phantasy [73]3 years ago
4 0

m<H + m< D = 180°

Since m<H and m<D are supplementary angles.

128°+m<D =180°

m<D = 180-128

m<D = 52°

Answer: m<D = 52°

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