Geometry is one of those fascinating branches of mathematics we encounter almost daily, whether we realize it or not. It deals with the relationships between points, lines, angles, surfaces, and solids, helping us understand the shapes and sizes of everything around us. From how buildings are designed to how you arrange furniture in your room, geometry plays a crucial role.
But why is geometry so important? Imagine trying to build a house without understanding the dimensions of the rooms or how much material you’ll need. Geometry provides the formulas and principles that make such tasks possible. In this article, we’ll dive into various geometry formulas, and trust me, by the end, you’ll find them much easier to understand!
SQUARE
- P = 4s
- A = s 2
RECTANGLE
- P = 2a + 2b
- A = ab
CIRCLE
- P = 2π
- A = π2
TRIANGLE
- P = a + b + c
- A = 1/2 bh
PARALLELOGRAM
- P = 2a + 2b
- A = bh
CIRCULAR SECTOR
- L = πr θ/180º
- A = πr2 θ/360º
PYTHAGOREAN THEOREM
- c2 = a2 + b2
- c = √(a2 + b2)
CIRCULAR RING
- A = π(R2 – r2)
SPHERE
- S = 4πr2
- V = 4/3 πr3
TRAPEZOID
- P = a + b + c + d
- A = 1/2 (a + b) h
RECTANGULAR BOX
- A = 2ab + 2ac + 2bc
- V = abc
RIGHT CIRCULAR CONE
- A = πr2 + πrs
- S = √(r2 + h2)
- V = 1/3 πr2h
CUBE
- A = 6l2
- V = l3
CYLINDER
- A = 2πr (r + h)
- A = πr2 h
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