Question

The observation deck of the Willis Tower in Chicago is 412 meters above the ground. On a scale drawing, this distance is 82.4 centimeters. The actual height of the building itself is 442 meters.

What is the height of Willis Tower in the scale drawing?

5.4 centimeters

76.8 centimeters

88.4 centimeters

112.4 centimeters

Answer 1

Answer: 88.4 centimeters

Explanation:

Let's make a proportion:

412 m - 82.4 cm

442 m - x cm

Hence,

`\displaystyle\\x=(442*82,4)/(412) \\\\x=(442*82.4)/(82.4*5) \\\\x=(442)/(5)=\\\\x=(88,4*5)/(5)=\\\\x=88,4\ cm`