GENERAL KNOWLEDGE

GK

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The length and width of a rectangle are 1.125 m and 0.606 m, respectively. Multiplying, your calculator gives the product as 0.68175. Rounding properly to the correct number of significant figures, the area of the rectangle should be written as ____
A
0.68 m2
B
0.682 m2
C
0.6818 m2
D
0.68175 m2
Explanation: 

Detailed explanation-1: -To use this length and width of a rectangle given the perimeter calculator, we need to input the perimeter and the value of one side. Let’s look at this example: The perimeter of a rectangle is 10 inches, and the width is 3 inches. Substitute in the known values: L = 10 / 2-3.

Detailed explanation-2: -Solution : Here, ‘l = ( 5.7 +-0.1) cm, b = (3.4 +-0.2) cm‘. <br> Area, ‘A = l xx b = 5.7 xx 3.4 = 19.38 cm^(2) = 19.0 cm^(2)‘ (rounding off to two significant figures) <br> ‘:.

There is 1 question to complete.