Perimeter is the distance around a plane shape.

Question

ScanSolve AI Tutor · Accepted Answer

Here are the definitions and formulas presented in the image:

Perimeter is the distance around a plane shape.
Area is the amount of surface covered by the figure.

Rectangle
Length $L$ , Breadth $B$
Perimeter:
$P = L + B + L + B$ $P = 2L + 2B$ $P = 2 \times (L + B)$
Area:
$A = L \times B$
The formulas for a rectangle are:
Perimeter: $\boxed{\mathbf{P = 2(L + B)}}$
Area: $\boxed{\mathbf{A = L \times B}}$
Square
Side $L$
Perimeter:
$P = L + L + L + L$ $P = 4L$
Area:
$A = L \times L = L^2$
The formulas for a square are:
Perimeter: $\boxed{\mathbf{P = 4L}}$
Area: $\boxed{\mathbf{A = L^2}}$
Triangle $PQR$
Height $PS$
In the triangle $PQR$ , $PS$ represents the height corresponding to the base $QR$ . The height is the perpendicular distance from a vertex to the opposite side (or its extension).

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