Question

woman was introduced on 9 march 1959, by mattel. inc., a southern california toy company.
three original barbie dolls from 1959 >>
source: https://www.britannica.com/topic/barbie
use the information above to answer the questions that follow.
3.1.1 determine how old barbie is currently (ignore months and days)
3.1.2 convert 12 inch to cm if 1 inch = 2.54cm.
3.2 a barbie house is sold globally every two minutes. shown below is the design plan for a barbie house with outer dimensions as follows: length = 94 cm, height = 123.4 cm and width = 69 cm. the outer width and length of each frame panel is 5 cm.
frame panel
length & width = 5cm
use the above information and designs to answer the following questions.
3.2.1 determine how many floors are found in this barbie house.
3.2.2 calculate the total floor area of the barbie house.
you may use the formula: area = length × width

Explanation:

Step1: Calculate Barbie's age in years

As of 2024, subtract the introduction year 1959 from 2024.
$2024 - 1959=65$ years.

Step2: Convert inches to centimeters

Given 1 inch = 2.54 cm, for 12 inches, multiply 12 by 2.54.
$12\times2.54 = 30.48$ cm

Step3: Determine the number of floors

By observing the design of the Barbie - house, we can see there are 3 floors.

Step4: Calculate the total floor area

The length of the house is 94 cm and the width is 69 cm.
The area of one floor is $A = 94\times69=6486$ $cm^{2}$.
Since there are 3 floors, the total floor area is $3\times6486 = 19458$ $cm^{2}$.

Answer:

3.1.1: 65 years
3.1.2: 30.48 cm
3.2.1: 3
3.2.2: 19458 $cm^{2}$