Question

FIND THE PROGRAM OF THE FOLLOWING :
1: FIND THE PERIMETER OF A SQUARE
2: FIND THE AREA AND CIRCUMFERENCE OF A CIRCLE ​

Answer 1

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1)

We know that all the sides of a square are equal.

Perimeter of a Square

Perimeter of the square ABCD

= AB + BC + CD + AD

= 2 cm + 2 cm + 2 cm + 2 cm

= (2 × 4) cm

= 8 cm

Perimeter of a square is 4 times of s side.

Perimeter of a square = 4 × length of a side.

2)

Circumference of circle: The distance around the circular region is called its circumference. The ratio of circumference of any circle to its diameter is constant. This constant is denoted by π and is read as pie.

Circumference/Diameter = Pie

i.e., c/d = π or c = πd

We know that diameter is twice the radius, i.e., d = 2r

C = π × 2r

⇒ C = 2πr

Therefore approximate value of π = 22/7 or 3.14.

Area of circle: The measure of the region enclosed inside the circle is called its area.

Answer 2

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