Question

find the measure of the side of a square handkerchief of area 324cm²​

Answer 1

Step-by-step explanation:

Given- Area of square = 324cm^2

Area of square = side^2

= ✓324

= 18cm

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Answer 2

Answer:

Given:-

Find the measure of the side of a square handkerchief of area 324 cm².

To Find:-

Side of a square handkerchief whose area is 324 cm².

Note:-

●》Area of a square handkerchief will be = Side ( S ) × Side ( S ) or Side² ( S² )

●》Sometimes in a sum, we need to rearrange a term from its side to another, For that;

The Addition ( + ) becomes Subtraction ( - )

The Subtraction ( - ) becomes Addition ( + )

The Multiplication ( × ) becomes division ( ÷ )

The division ( ÷ ) becomes Multiplication ( × )

Square ( ² ) becomes Under root ( √ )

●》For checking, both side term should be equal of Area of square and its side measurement.

Solution:-

Area of square handkerchief = 324 cm², Its side = ?, Let side be "x".

☆ According to note first point ( area of square = S × S or S² )~

▪︎$Area \ \ of \ \ handkerchief = Side × Side$

▪︎$324 cm² = x × x$

▪︎$324 cm² = x²$

☆ According to note second point ( rearrangement of square to under root )~

▪︎$√324 cm² = x$

☆ After calculating the under root value~

▪︎$18 cm = x$

x = 18 cm

Checking:-

Area of square = Side × Side or S²

♤ According to note third point~

• $Area \ \ of \ \ square = Side × Side$

• $324 cm² = 18 cm × 18 cm ?$

♤ 18 × 18 is 324 and cm × cm will be cm².

• $324 cm² = 324 cm² ?$

Yes!

Hence, proved that side = x = 18 cm

Answer:-

Side of a square handkerchief is = 18 cm.

:)