(a+ 30) and 4a are the measures of supplementary angle what is the measure of each angle
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Answered by
1
a+30+4a=180
5a=150
a=30
Measure of angles are:
a+30=30+30=60
4a=4×30=120
Answered by
2
Both are supplementary. ∴ Their sum is 180°.
(a + 30) + 4a = 180
= a + 30 + 4a = 180
= 5a + 30 = 180
= 5(a + 6) = 180
a + 6 = 180 / 5 = 36
a = 36 - 6 = 30
a + 30 = 30 + 30 = 60
4a = 4 × 30 = 120
∴ The angles are 60° and 120°.
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shadowsabers03:
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