Question

Jason and Adam are using a kit to build their own Electronics board for a computer project. they use a scale drawing included in the instructions to help build the board. Jason will use the scale factor to find the boards actual length and width then multiply those Dimensions to find the board's area Adam says he knows another way the second one only

Answer 1

Given the rectangle with the dimensions 36 cm and 50 cm

The scale factor is 5 : 1

The area of the rectangle = length x width = 36 x 50 = 1800 cm^2

Part 1:

Actual dimensions will be 36/5 and 50/5 = 7.2 and 10 cm

so, the actual area = 7.2 * 10 = 72

Part 2:

The actual area can be calculated also by dividing the given area by square the scale factor

So, actual area =

`(1800)/(5^2)=(1800)/(25)=72\text{ cm\textasciicircum{}2}`

3. The area of actual board = 72 cm^2