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Geometry Formulas and Angles Cheat Sheet, Cheat Sheet of Geometry

North Shore Community CollegeGeometry

A geometry formula sheet and a summary of different types of angles. The formula sheet includes calculations for the perimeter, area, and volume of various geometric shapes such as squares, rectangles, parallelograms, trapezoids, circles, and rectangular solids. The angles section explains the definitions of acute, right, obtuse, straight, and supplementary angles.

Typology: Cheat Sheet

2021/2022

Uploaded on 02/07/2022

shokha
shokha 🇮🇳

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bg1
b
B
h
r
d
Geometry Formula Sheet
Perimeter (P) = units
Area (A) = units2
Volume (V) = units3
Square/Rectangle
P = S + S + S + S
𝐴 = 𝑙 × 𝑤
Trapezoid
P = S + S + S + S
𝐴 = ℎ × (𝐵 + 𝑏)
2
Circle
𝐶 = 3.14 × 𝑑
𝐴 = 3.14 × 𝑟 × 𝑟
Rectangular Solids
𝑉 = 𝑙 × 𝑤 × ℎ
Hemisphere
𝑉 = 2 × 3.14 × 𝑟 × 𝑟 × 𝑟
3
Cone
𝑉 = 3.14 × 𝑟 × 𝑟 × ℎ
3
pf2

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b B h r d

Geometry Formula Sheet

Perimeter (P) = units Area (A) = units^2 Volume (V) = units^3

Square/Rectangle

P = S + S + S + S

𝐴 = 𝑙 × 𝑤

Parallelogram P = S + S + S + S 𝐴 = 𝑏 × ℎ Trapezoid P = S + S + S + S 𝐴 =

ℎ × (𝐵 + 𝑏)

Triangle P = S + S + S 𝐴 =

𝑏 × ℎ

Circle 𝐶 = 3. 14 × 𝑑 𝐴 = 3. 14 × 𝑟 × 𝑟 Semicircle 𝐴 =

3. 14 × 𝑟 × 𝑟

Rectangular Solids 𝑉 = 𝑙 × 𝑤 × ℎ Sphere 𝑉 =

4 × 3. 14 × 𝑟 × 𝑟 × 𝑟

Hemisphere 𝑉 =

2 × 3. 14 × 𝑟 × 𝑟 × 𝑟

Cylinder 𝑉 = 3. 14 × 𝑟 × 𝑟 × ℎ Cone 𝑉 =

3. 14 × 𝑟 × 𝑟 × ℎ

Pyramid 𝑉 =

𝑙 × 𝑤 × ℎ

Cheat Sheet – Unit 3

1. Lines and Rays ray AB or 𝐴𝐵⃗⃗⃗⃗⃗ line segment CD or^ 𝐶𝐷̅̅̅̅

E F

Line EF or 𝐸𝐹⃡⃗⃗⃗⃗

2. Kinds of angles a. Acute is less than 90° b. Right = 90 ° (Look for the box) c. Obtuse is greater than 90 ° but less than 180 ° d. Straight angle (line) has 180 ° e. Opposite angles are the same. (A=C, B=D)

  1. Supplementary angles add up to 180 ° Complimentary angles add up to 90 °