Midterm Review Part II 38. 39.. Midterm Review Part II 40

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38.

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40.

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Isosceles Triangle = Base angles are

Equilateral Triangle = All angles are 60º

y – 10 = 60 x + 5 = 60

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5x = 10(2) 2(x – 8) = 35

Remember the mid-segment is half the base.

55. 56.

Midterm Review Part II

𝟑 𝒙=𝟐 𝒙+𝟓𝟐 𝒙=𝒙+𝟑

57. 58.

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Opposite to the longest side is the bigger angle.Opposite to the shortest side is the smallest angle.

Opposite to the bigger angle is the longest side.Opposite to the smallest angle is the shortest side .

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(n – 2)18061. 62.

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(n – 2)180n

360n

63. 64.

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70.

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4x = 7x – 12

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90 + 4x + 2x + 6 = 180 38 + 17x + 1 + 3x + 1 = 180

17x + 1 = 2y

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+ 4x + 4x– 4x + 7y = – 28

7y = 4x – 28 7 7 7

y = 4x – 4 7

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12 cm + 5 cm > 7 cm5 cm + 7 cm > 12 cm No10 cm + 15 cm > 24 cm15 cm + 24 cm > 10 cm24 cm + 10 cm > 15 cm Yes

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Midterm Review Part II78.

𝒎𝒊𝒅𝒔𝒆𝒈𝒎𝒆𝒏𝒕=𝟏𝟐

(𝒃𝟏+𝒃𝟐)

𝒐𝒓𝟐(𝒎𝒊𝒅𝒔𝒆𝒈𝒎𝒆𝒏𝒕 )=𝒃𝟏+𝒃𝟐