Question

(y - 20)° and (y + 30)° are the measures of complementry angles. find the measures of each​

Answer 1

Answer:

y-20⁰+y+30⁰=90⁰

2y+10⁰=90⁰

2y=80⁰

y=40⁰

i)y-20⁰=20⁰

ii)y+30⁰=70⁰

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Answer 2

Answer:

y-20° + y + 30° = 90

2y +10 = 90

2y = 80

y = 40

then

y -20 = 40-20 = 20

y+30 = 40+30 = 70

complementary angles = sum of two angles is 90°

20+70 = 90

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