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Goryan [66]
3 years ago
7

I need help with finding interior/exterior angles. solve for “?”

Mathematics
2 answers:
Ivenika [448]3 years ago
8 0

Answer:

3. 160

4. 105

5. 95

6. 30

7. 86

8. 130

All triangles equal 180 so when you add the other 2 degrees in the triangle then subtract that by 180 then you get the third angle. The a straight line also equals 180 degrees so when you get the third angle subtract it by 180 then you get the answer to the "?"

That's how I was taught so, hope I got it all right! : )

Elan Coil [88]3 years ago
4 0
3 is 120 degrees
4 is 105 degrees
5 is 95 degrees
6 is 30 degrees
7 is 86 degrees
8 is 130 degrees
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Answer:

x = 15

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Step-by-step explanation:

For right angle x^2 + z^2 = (9 + 16)^2 => x^2 + z^2 = 625

then z^2 = y^2 + 16^2 => y^2 = z^2 - 256

and x^2 = y^2 + 9^2 => y^2 = x^2 - 81

so z^2 - 256 = x^2 - 81

z^2 = x^2 + 175

replace z^2 = x^2 + 175 into the first equation

x^2 + (x^2 + 175) = 625

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x^2 = 225

x = 15

If x = 15 => 15^2 + z^2 = 625 => z^2 = 400 => z = 20

y^2 = z^2 - 256 => y^2 = 400 - 256 = 144

then y = 12

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What is the area of a circle with a diameter of 24 meters (use 3.14 for Pi)?
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The area of a circle is represented by the equation:


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Now we know that the area of this circle is 452.16 square meters.

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