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Ch 10 Review #1 - Area Formulas (Geometry) Flashcards | StudBud

Explore/Ch 10 Review #1 - Area Formulas (Geometry)

Length of an Arc?

The cosine of an angle is the ratio of ...

Ch 10 Review #1 - Area Formulas (Geometry)

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Questions 13

Answers

1
The cosine of an angle is the ratio of ...
adjacent to hypotenuse
1:√3:2
opposite to adjacent
opposite to hypotenuse
2
Length of an Arc?
m(arc AB)/360 • πr2
m(arc AB)/360 • πd
πr2
m(arc AB)/360 • 2πr
3
The tangent of an angle is the ratio of ...
opposite to adjacent
opposite to hypotenuse
adjacent to hypotenuse
1:√3:2
4
Area of a regular polygon?
1/2•r•r•sinA•n
SOH-CAH-TOA
a2 + b2 = c2
1/2•a•p
5
Circumference of a Circle?
m(arc AB)/360 • πr2
πr2
πd
2πr
6
Area of a sector?
m(arc AB)/360 • πd
πr2
m(arc AB)/360 • πr2
πd
7
Area of a segment?
m(arc AB)/360 • πr2 - 1/2•b•c•sinA
m(arc AB)/360
m(arc AB)/360 • πd - 1/2•b•c•sinA
m(arc AB)/360 • 2πr - 1/2•b•c•sinA
8
Area of a parallelogram?
1/2 b•c•sinA
s2
b•h
1/2 b•h
9
The sine of an angle is the ratio of ...
opposite to hypotenuse
1:√3:2
opposite to adjacent
adjacent to hypotenuse
10
Area of a rectangle?
s2
1/2 b•h
1/2 b•c•sinA
b•h
11
Area of a triangle?
s2
1/2 b•h
b•h
1/2 b•c•sinA
12
Area of a circle?
πd
πr2
2πr
m(arc AB)/360 • πr2
13
Area of a trapezoid?
1/2•(b1 + b2)•h
b•h
1/2•b1•b2•h
1/2•b•h