Find the Perimeter of square with side 19.9 cm
Answers
Answer:
P=79.6cm
Step-by-step explanation:
A square is a regular quadrilateral and it has four equal sides and four equal angles (90 degree angle or right angles).
A square quadrilateral with vertices ABCD would be denoted by ABCD. The perimeter of a square (quadrilateral) is given by:
P = 4a
Where a is the length of each side.
Properties of square:
· Diagonals of a square (quadrangle) bisect each other
· Diagonals of a square (quadrangle) bisect its angles.
· Diagonals of a square (quadrangle) are perpendicular.
· Opposite sides of a square (quadrangle) are both parallel and equal.
· All four angles of a square (quadrangle) are equal. (Square is 360/4 = 90 degrees, so every angle of a square (quadrangle) is a right angle.)
· The diagonals of a square (quadrangle) are equal.
Example 1: Find the area and perimeter of the square whose side length is 4 meters.
Solution:
Given that:
a = 4m
Area of square = a2 = 4 × 4 = 16 m2
Perimeter of the square = 4 × 4 = 16 m
Example 2: Find the perimeter of square whose sides are 16 cm in length.
Solution:
Perimeter of the square:
P = 4a
P = 4 × 16 cm
P = 64 cm
Hence, the perimeter of square is 64 cm.
Example 3: What is the perimeter of a square, if the length of each side is 13 ft?
Solution:
The length of each side of a square is 13ft.
The perimeter of a square:
P = 4 × a
P = 4 × 13
P = 52 ft
The perimeter of the square is 52 ft.
Step-by-step explanation:
Side of the Square = 19.9 cm
Perimeter = Side × 4
==> 19. 9 × 4
==> 79.6
.°. The Perimeter of the Square is 79.6 cm