Question

6. What is the area of a rectangular frame of length 7.5 cm and breadth 5 cm?​

Answer 1

Answer:

Length = 7.5cm

Breadth = 5cm

Area of rectangle = Length × Breadth

= 7.5cm × 5cm

= 37.5cm²

Hence , the area of a rectangle frame is 37.5cm²

Answer 2

Question:

• What is the area of a rectangular frame of length 7.5 cm and breadth 5cm?

Given:

• Length of rectangular frame = 7.5 cm
• Breadth of rectangular frame = 5 cm

To Find:

• Area of the rectangular frame = ??

Formula Used:

$\red{Area_{(Rectangle)}=(l\times b)\:sq. \:units}$

Solution:

Area of rectangular frame = (length × breadth) sq. units

Area of rectangular frame = (7.5 × 5) cm²

Area of rectangular frame = 37.5 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.

Formulas used in Mensuration:

• 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 = $\dfrac{1}{2}\Big(base \times height\Big) sq.\:units$

• Circumference of circle = (2πr)units
• Area of circle = (πr²) sq. units