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tino4ka555 [31]
3 years ago
5

I need the answers pls!!

Mathematics
2 answers:
vichka [17]3 years ago
7 0

<u>First, a complementary angle are two angles that add up to 90. while supplementary add up to 180. </u>

Complementary angles; 1 & 2, 3 & 4, 9 & 10, 11 & 12. (these all make one line which equals 180.)

Supplementary angles; 7 & 8, 5 & 7, 6 & 5, 8 & 6. (these all make up a 90 degree angle.)

Hope this helps. <3

Llana [10]3 years ago
5 0

complimentary angles equal 90 degrees so 1 and 2, 3 and 4, 9 and 10, 11 and 12 would be complimentary

supplementary angles equal 180 degrees so 6 and 5, 5 and 7, 7 and 8, and 8 and 6 would be supplementary

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Hi again here's the picture
pshichka [43]

Answer:

<h2>351.88 m</h2>

Step-by-step explanation:

Given,

D = diameter of semicircular part = 42 m

L = Length of straight part = 110 m

Now, let's find the perimeter:

= 2 ( length of semi-circle + length of straight part )

= 2( \frac{\pi \: d}{2}  + l)

Plug the values

= 2( \frac{3.14  \times 42}{2}  + 110)

Calculate the product

= 2( \frac{131.88}{2}  + 110)

Divide

= 2 (65.94 + 110)

Calculate the sum

= 2 \times 175.94

Calculate

= 351.88 \: m

Hope this helps..

Best regards!!

8 0
3 years ago
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dalvyx [7]

Answer:

18 minutes

Step-by-step explanation:

60/40=1.5

12 x 1.5 = 18

8 0
2 years ago
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m_a_m_a [10]
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3 years ago
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Help me please!!..,,
kari74 [83]

Answer:

A.

Step-by-step explanation:

1.5 x 0.1 = 0.15

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5 0
3 years ago
Lilian has 42 feet of yarn. She wants to cut the yarn into 8 equal parts. How long will each part be?
GrogVix [38]

Answer:

A. Five and two eighths feet.

Step-by-step explanation:

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or

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3 0
3 years ago
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