The sides of a rectangle are 7.01m and 1. 2 × 10 ^ 1 m . Taking the significant figures into account, the area of the rectangle is

Correct answer: D. 84m^ 2 Given, Side of rectangle are 7.01m and 12m . Areaofrectangle = Length × Breadth = 7.01 × 12 = 84.12m^ 2 Rounded of two significant figures. Area of rectangle = 84m^ 2

NTA Abhyas 2020

Exam: NTA Abhyas
Year: 2020
Subject: Physics
Chapter: Units and Dimensions

NTA Abhyas 2020 · Physics · Units and Dimensions

The sides of a rectangle are 7.01m and 1. 2 × 10 ^ 1 m . Taking the...

The sides of a rectangle are

7.01\text{m}

and

1. 2 \times {10}^{1}\text{m}

. Taking the significant figures into account, the area of the rectangle is

Options

A $84.1m^{2}$
B $84.00m^{2}$
C $84.12m^{2}$
D $84m^{2}$

Correct answer

D. $84m^{2}$

Step-by-step solution

Given,

Side of rectangle are

7.01\text{m} and

12\text{m}

.<br /><br />Areaofrectangle = Length \times Breadth

= 7.01 \times 12 = 84.12m^{2}

Rounded of two significant figures.

Area of rectangle

= 84m^{2}

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