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brilliants [131]
3 years ago
9

How can you remember the difference between supplementary and complementary angles

Mathematics
1 answer:
Klio2033 [76]3 years ago
3 0
I always remembered it as the 's' (for supplementary) is farther than 'c' (for complementary) in the alphabet just like 180 degrees is farther than 90 degrees

so supplementary is 180 degrees
complementary is 90 degrees
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The blue segment below is a diameter of O. What is the length of the radius of the circle?
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Option D is the right answer.


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3 0
3 years ago
Please help due in 20 minutes
MissTica
  • <PTQ=90

In ∆PTQ

Apply Pythagorean theorem

\\ \tt\hookrightarrow PT^2=PQ^2+QT^2

\\ \tt\hookrightarrow PT^2=15.4^2+9.3^2=323.16

\\ \tt\hookrightarrow PT=17.9

In ∆TRQ

\\ \tt\hookrightarrow tan44.4=\dfrac{QT}{TR}=\dfrac{9.3}{TR}

\\ \tt\hookrightarrow 0.9=\dfrac{9.3}{TR}

\\ \tt\hookrightarrow TR=\dfrac{9.3}{0.9}=10.3

  • PR=PT+TR=10.3+17.9=28.2cm

Now

Area:-

\\ \tt\hookrightarrow 1/2bh

\\ \tt\hookrightarrow 1/2(28.2)(9.3)

\\ \tt\hookrightarrow 14.1(9.3)

\\ \tt\hookrightarrow 131.13cm^2

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2 years ago
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