Geometry Reference Sheet
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1R
Geometry
Reference
Sheet
E
F
Formulas
Area = bh
Volume = Bh
Parallelogram
Prism
Surface Area = 2B + Ph
1
Volume = πr
2
Area = –
h
bh
Right
Triangle
2
Cylinder
Surface Area =
πr
+
πrh
2
2
2
1
4
Area = –h(b
+ b
Volume = –πr
)
3
Trapezoid
Sphere
1
2
2
3
Surface Area = 4πr
2
1
Area = πr
2
Volume = –πr
2
h
Circle
Right Cone
3
Circumference = πd
Surface Area = πr∙ + πr
2
or
Circumference =
πr
2
1
Ax + By = C
Volume = –Bh
General
Square
3
Equations
Pyramid
1
y = mx + b
Surface Area = –P∙ + B
2
y – y
= m(x – x
)
1
1
+ b
= c
2
2
2
Pythagorean
a
(x – h)
+ (y – k)
= r
2
2
2
Theorem
Slope
Right
– y
y
30°
60°
90°
2
1
m =
Formula
Triangle
– x
x
2
1
x
x √ 3
2x
Relationships
45°
45°
90°
Distance
D =
√
– x
+
– y
2
2
Formula
x
)
(
(y
)
x
x
x √ 2
2
1
2
1
For a line segment with
Midpoint
Trigonometric
opposite
sin A =
Formula
Ratios
hypotenuse
endpoints (x
, y
) and
1
1
(x
, y
) the midpoint is
adjacent
2
2
cos A =
hypotenuse
+ x
+ y
∙
x
y
∙
,
1
2
1
2
2
2
opposite
tan A =
adjacent
79
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