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Squares and Square Roots & Cubes and Cube Roots | Squares and Square Roots & Cubes and Cube Roots - Exercise

Question 111

A decimal number is multiplied by itself. If the product is 51.84, find the number.

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Let us assume decimal number be ‘a’.

We know that a × a = a^2

So,

a × a = 51.84

a^2 = 51.84

a = √51.84

The required number is found out by using long division method.

Then,

a = √51.84

a = 7.2

∴ 7.2 is the decimal number is multiplied by itself and its product is 51.84.

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subject-cta

Question 111

A decimal number is multiplied by itself. If the product is 51.84, find the number.

Looking to do well in your science exam ? Learn from an expert tutor. Book a free class!

Let us assume decimal number be ‘a’.

We know that a × a = a^2

So,

a × a = 51.84

a^2 = 51.84

a = √51.84

The required number is found out by using long division method.

Then,

a = √51.84

a = 7.2

∴ 7.2 is the decimal number is multiplied by itself and its product is 51.84.

Our top 5% students will be awarded a special scholarship to Lido.

subject-cta
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