Question

A rectangle with one side 4 cm is inscribed in a circle of diameter 5 cm. Find the area of rectangle

Answer 1

Since it is in circle si diagonal of rectangle is equal to its diameter so by Pythagoras Therom
5*2=4*2+b*2. B is breadth
B=3
So area.of rectangle =l×b
Area=4×3
Area=12cm*2

Answer 2

Step-by-step explanation:

Given :

⭐ One side of a rectangle is 4 cm.

⭐ Diameter of a circle is 5 cm.

Find :

The area of rectangle.

Solution :

Using Pythagoras Theorem,

b² = 5² - 4²

b² = 25 - 16

b² = 9

b = √9

b = 3

So,

Length = 4 cm

Breadth = 3 cm

Area of rectangle = L × b

➡ 4 × 3

➡ 12 cm²

Hence :

The area of rectangle is 12 cm².