Question

Alongside figure is
rectangle ABCD
What is the area of
A ABC?
​

Answer 1

Question:

• In a rectangle ABCD, length is 12.5cm and breadth is 8cm. Find its area.

Answer:

Area of rectangle = (length × breadth) sq. units

= (12.5 × 8) cm²

= 100 cm²

Hence, the area of rectangle ABCD = 100 cm²

Extra Information:

• Perimeter: The perimeter of a plane figure is the length of its boundary.
• Area: The measurement of the region enclosed by a plane figure is called its area.

• Perimeter of square = (side×4)units

• Area of square = (side²) sq. units

• Perimeter of rectangle = 2(l + b) units

• Area of rectangle = (l × b) sq. units$\:\:\longrightarrow\:\:\boxed{This\: is \:used \:here.}$

• Perimeter of triangle = Sum of all sides

• Area of triangle = $\Big(\frac{1}{2}\times base \times height\Big) sq. \;units$

• Circumference of circle = (2πr)units

• Area of circle = (πr²) sq. units