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choli [55]
3 years ago
14

81) The figure below is a trapezoid.

Mathematics
2 answers:
marta [7]3 years ago
6 0

Answer:

A) LM || NO

Step-by-step explanation:

In a trapezoid one pair of opposite sides is always parallel.

Here, in the given figure, LM is parallel to NO

A) LM || NO is the correct answer.

stiks02 [169]3 years ago
5 0
A) LM || NO is the right answer :ppp
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Which polyhedron has more faces than a hexahedron, but fewer faces than an dodecahedron?
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Octahedron (8) is a <span>polyhedron has more faces than a hexahedron, but fewer faces than an dodecahedron.</span>

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ANEK [815]
1. 60,30,90 right triangle. y will be hypotenuse/2, x will be
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2. 45,45,90 right triangle (2 legs are equal length and you have a right angle).
X and Y will be the same length and that will be hypotenuse * sqrt(2)/2. So 
x = y = 8*sqrt(2) * sqrt(2)/2 = 8*2/2 = 8 
 3. Just a right triangle with both legs of known length. Use the Pythagorean theorem 
x = sqrt(12^2 + 5^2) = sqrt(144 + 25) = sqrt(169) = 13  
4. Another right triangle with 1 leg and the hypotenuse known. Pythagorean theorem again. 
y = sqrt(1000^2 - 600^2) = sqrt(1000000 - 360000) = sqrt(640000) = 800  5. A 45,45,90 right triangle. One leg known. The other leg will have the same length as the known leg and the hypotenuse can be discovered with the Pythagorean theorem.  x = 6. y = sqrt(6^2 + 6^2) = sqrt(36+36) = sqrt(72) = sqrt(2 * 36) = 6*sqrt(2), approximately 8.485281374  
6. Another 45,45,90 triangle with the hypotenuse known. Both unknown legs will have the same length. And Pythagorean theorem will be helpful. 
x = y. 
12^2 = x^2 + y^2 
12^2 = x^2 + x^2 
12^2 = 2x^2 
144 = 2x^2 
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sqrt(72) = x 
6*sqrt(2) = x 
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7. A 30,60,90 right triangle with the short leg known. The hypotenuse will be twice the length of the short leg and the remaining leg can be determined using the Pythagorean theorem. 
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8. A 30,60,90 right triangle with long leg known. Can either have fact that in that triangle, the legs have the ratio of 1:sqrt(3):2, or you can use the Pythagorean theorem. In this case, I'll use the 1:2 ratio between the unknown leg and the hypotenuse along with the Pythagorean theorem. 
x = 2y 
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y^2 = (2y)^2 - (22.5*sqrt(3))^2 
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10. Another right triangle, another use of the Pythagorean theorem. 
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Answer:

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Aleks [24]

Answer:

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Ahat [919]

Answer:

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Step-by-step explanation:

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x=180-90-48

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