18 - Geometry

Question 1

Two equations for Area of a Triangle (not equilateral)

Answer 1

1/2 * base * height

(leg*leg)/2

Question 2

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Question 3

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Question 5

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Question 6

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Question 7

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Question 8

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Question 9

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Question 10

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Question 11

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Question 12

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Question 13

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Question 14

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Question 15

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Question 18

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Question 29

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Question 30

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Question 31

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Question 32

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Question 33

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Question 34

Similar shapes: ratio of the side is x:y, the ratio of the area is

Answer 34

x²:y²

Question 35

One way to estimate the area of a triangle is by

Answer 35

dividing it into smaller shapes.

Question 36

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Question 37

Arc angle =

Answer 37

Central angle

Question 38

Angle adjacent to arc is

Answer 38

1/2 the Central Angle

Question 39

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Question 40

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Question 41

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Question 42

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Question 43

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Question 50

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Question 53

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Question 55

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Question 56

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Question 57

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Question 58

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Question 59

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Question 60

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Question 61

Equation for Equilateral Triangle

Answer 61

s²(radical 3)/4

Question 62

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Question 63

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Question 64

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Question 65

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Question 66

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Question 67

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Question 68

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Question 69

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Question 70

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Question 71

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Question 72

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Question 73

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Question 74

What is the measure of angle ADB?

Answer 74

There is not enough information to know. Don't assume that a line cutting through the 90 degree angle cuts it in half. In this case it is 50 degrees.

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Question 77

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Question 78

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Question 79

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Question 80

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Question 81

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Question 82

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Question 86

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Question 87

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Question 88

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Question 89

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Question 90

Isosceles Triangle when a line is drawn from base to altitude is

Answer 90

Cut into two equal triangles