Question

If Raj calculates the area of a square
with a side of 1.2 cm instead of the
area of a square with a side of 2.1
cm, then what is the difference
between his answers?
is the
opinie
14.41 sq.cm.
2 3.21 sq.cm.
Arundt
Len
3 2.97 sq.cm.
4 2.67 sq.cm.
11:33 AM​

Answer 1

Given - Two values for side of squares.

Find - Difference between the two area of squares.

Solution - Area of square is given by the formula - side². The question mentions two different values for side of square. So, calculating the area by taking side as 1.2 cm.

Area1 = 1.2² = 1.44 cm².

Now, calculating the area by taking side as 2.1 cm.

Area2 = 2.1² = 4.41 cm².

Therefore, Raj calculates the area of square as 1.44 cm² and 4.41 cm². The difference between the two area is - 2.97 cm².

Hence, option 3 2.97 sq.cm. is the correct answer.

Answer 2

Question :- If Raj calculates the area of a square with a side of 1.2 cm instead of the area of a square with a side of 2.1 cm, then what is the difference between his answers ?

A) 14.41 sq.cm.

B) 3.21 sq.cm.

C) 2.97 sq.cm.

D) 2.67 sq.cm.

Solution :-

we know that,

• Area of square = (side)² .

so,

→ Area of square with side as 1.2 cm = (1.2)² = 1.44 cm².

and,

→ Area of square with side as 2.1 cm = (2.1)² = 4.41 cm².

therefore,

→ Difference between area = 4.41 - 1.44 = 2.97 cm². (C) (Ans.)

LEARN MORE :-

*If the sum of three consecutive positive integers is 45, which is the largest number of them?*

1️⃣ 14

2️⃣ 18

3️⃣ 16

4️...

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