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Cloud [144]
3 years ago
10

In triangle abc, the angle c is six times as large as angle

Mathematics
1 answer:
mote1985 [20]3 years ago
3 0
The interior angles of a triangle add up to 180 degrees

a = 1st angle, b = 2nd angle, c = 3rd angle

c = 6a
b = a + 60
a + b + c = 180

a + (a + 60) + (6a) = 180
8a + 60 = 180
8a = 180 - 60
8a = 120
a = 120/8
a = 15 <=== here is one angle

b = a + 60
b = 15 + 60
b = 75 <=== and another one

c = 6a
c = 6(15)
c = 90 <=== and the last angle

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I need help with this so can someone please help me
slava [35]

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Answer:

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Step-by-step explanation:

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3 years ago
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jek_recluse [69]

Answer:

\cos(63^\circ) is the same as \sin(27^\circ) by co-function identities

Step-by-step explanation:

Remember that complementary angles add up to 90°. The angle that i s complementary to 63° is 27°.

Also recall the co-function identities:

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This means that \cos(90^\circ-27^\circ)=\sin(27^\circ)\approx0.454.

4 0
1 year ago
Select the correct answer from the drop-down menu.
Papessa [141]

Answer:

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This is calculated using:

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4 0
2 years ago
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AysviL [449]

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