FOUR SQUARES OF SIDE 1 M EACH ARE CUT FROM FOUR CORNERS OF A BIGGER SQUARE OF SIDE 4 M.FIND THE PERIMETER PORTION OF THE REMAINING PORTION OF THE BIGGER SQUARE .
(A) 16 SQ.M
(B) 4 SQ.M
(C) 12 SQ.M
(D) 20 SQ.M
CHOOSE THE CORRECT ONE AND EXPLAIN WHY IS THE ANSWER SO?
ANSWER FAST AND REMEMBER NOT SPAM✖
Answers
In area of a square we will learn how to find the area by counting squares.
To find the area of a region of a closed plane figure, we draw the figure on a centimeter squared paper and then count the number of squares enclosed by the figure.
We know, that square is a rectangle whose length and breadth are equal. In a square all four sides are equal.
Therefore, area of a square = (side × side) square units = (side)2 square units.
Square
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Square
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In a square the length is equal to breadth.
Hence, area of a square = side × side
The number of 1 cm squares enclosed = 4
Area = 4 sq cm
4 = 2 × 2
Hence, area = side × side
The unit of sides and the corresponding units of areas as given below:
Unit of Side
Unit of Area
mm
square mm (sq mm) or mm2
cm
square cm (sq cm) or cm2
m
square m (sq m) or m2
km
square km (sq km) or km2
Note: Write finding the area of a given figure, make sure that the sides (length or breadth) are in the same unit of length. If they are given in different units, change them to the same unit.
Answer:
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