Students can go through AP Board 7th Class Maths Notes Chapter 13 Area and Perimeter to understand and remember the concepts easily.

## AP State Board Syllabus 7th Class Maths Notes Chapter 13 Area and Perimeter

→ The area of a parallelogram is equal to the product of its base (b) and corresponding height (h) A = bh.

Any side of the parallelogram can be taken as its base.

→ The area of a triangle is equal to half the product of its base and height.

A = \(\frac{1}{2}\) bh

A triangle = Half a parallelogram

→ The area of a Rhombus is equal to half the product of Its diagonals.

A = \(\frac{1}{2}\) d_{1}d_{2}

→ The circumference of a circle = 2πr = πd where π = \(\frac{22}{7}\) or 3.14, d = \(\frac{r}{2}\)