Tell whether the angles are complementary or supplementary. Then find the value of x.
2 answers:
Answer:
Step-by-step explanation:
Complementary angles form a right angle and supplementary angles form a straight angle.
<h3>#7</h3>
<u>Complementary:</u>
<h3>#8</h3>
<u>Supplementary:</u>
2x + 6x + 20 = 180 8x = 160 x = 20
Step-by-step explanation:
1)
Since we know that sum of two complementary angles are 90⁰
=> 65 + 5x = 90
=> 5x = 90 - 65
=> 5x = 35
=> x = 35/5
=> x = 7⁰
2)
Since we know that sum of two supplementary angle are 180
=> 2x + 6x + 20 = 180
=> 8x = 180 - 20
=> 8x = 160
=> x = 160/8
=> x = 20
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Answer:
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Step-by-step explanation:
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