Question

The length of a rectangular sheet is 1.5 cm and the breadth is 1.203 cm. Find the areas of the face of a rectangular sheet to the correct number of significant figures.

Answer 1

Hint
A rectangle has a 2D shape. The two opposite sides are parallel to each other. The area of the rectangle is the product of length and breadth. As in the question it is given the values of length and breadth and hence, we can find the value of the area of the rectangle.

Complete step-by-step answer:
The lengthy of the rectangle is $L = 1.5 cm$
Breadth of the rectangle is $B = 1.203 cm$
A rectangle has a 2D shape. The two opposite sides are parallel to each other. The area of rectangle is the product of length and breadth
$ \Rightarrow A = L \times B$
Substitute the value of the length and breadth in above formula, we get
$
   \Rightarrow A = 1.5 \times 1.203 \\
   \Rightarrow A = 1.8045 c{m^2} \\
   \Rightarrow A = 1.8 c{m^2} \\
 $
This is the required area of the face of the rectangle sheet.

Note
A rectangle has a 2D shape. The two opposite sides are parallel to each other, moreover the two sides of the rectangle make an angle of 90$^\circ$, since the blackboard is of the rectangle shape, it must possess all these properties. It is advised to remember the direct basic formula for areas of shape like rectangle, circle, square etc. as it helps saving a lot of time.