geometry formulas

BASIC GEOMETRY FORMULAS

PerimeterofaSquare=P=4a$PerimeterofaSquare=P=4a$

Where a = Length of the sides of a Square

PerimeterofaRectangle=P=2(l+b)$PerimeterofaRectangle=P=2(l+b)$

Where, l = Length ; b = Breadth

AreaofaSquare=A=a2$AreaofaSquare=A=a^2$

Where a = Length of the sides of a Square

AreaofaRectangle=A=l×b$AreaofaRectangle=A=l\times b$

Where, l = Length ; b = Breadth

AreaofaTriangle=A=b×h2$AreaofaTriangle=A=\frac{b\times h}{2}$

Where, b = base of the triangle ; h = height of the triangle

AreaofaTrapezoid=A=(b1+b2)h2$AreaofaTrapezoid=A=\frac{(b_1+b_2)h}{2}$

Where, b1$b_1$ & b2$b_2$ are the bases of the Trapezoid ; h = height of the Trapezoid

AreaofaCircle=A=π×r2$AreaofaCircle=A=\pi \times r^2$

CircumferenceofaCircle=A=2πr$CircumferenceofaCircle=A=2\pi r$

Where, r = Radius of the Circle

SurfaceAreaofaCube=S=6a2$SurfaceAreaofaCube=S=6a^2$

Where, a = Length of the sides of a Cube

SurfaceAreaofaCylinder=S=2πrh$SurfaceAreaofaCylinder=S=2\pi rh$

VolumeofaCylinder=V=πr2h$VolumeofaCylinder=V=\pi r^{2}h$

Where, r = Radius of the base of the Cylinder ; h = Height of the Cylinder

SurfaceAreaofaCone=S=πr(r+h2+r2−−−−−−√)$SurfaceAreaofaCone=S=\pi r(r+\sqrt{h^2+r^2})$

VolumeofaCone=V=πr2h$VolumeofaCone=V=\pi r^{2}h$

Where, r = Radius of the base of the Cone, h = Height of the Cone

SurfaceAreaofaSphere=S=4πr2$SurfaceAreaofaSphere=S=4\pi r^2$

VolumeofaSphere=V=43πr3$VolumeofaSphere=V=\frac{4}{3}\pi r^3$

Where, r = Radius of the Sphere