An area problem: The Johnsons are planningto build a 5-foot-wide brick walkway aroundtheir rectangular garden, which is 20 feet wideand 30 feet long. What will the area of this walk-way be? Before you solve the problem yourself,use Kaitlyn's idea:3.Kaitlyn's idea is to "take away the area of thegarden." Explain how to solve the problemabout the area of the walkway by using thisidea. Explain clearly how to apply one or bothof the moving and additivity principles ona.area in this case.b. Now solve the problem about the area ofthe walkway in another way than you did inpart (a). Explain your reasoning.

Question
Asked Sep 30, 2019
An area problem: The Johnsons are planning
to build a 5-foot-wide brick walkway around
their rectangular garden, which is 20 feet wide
and 30 feet long. What will the area of this walk-
way be? Before you solve the problem yourself,
use Kaitlyn's idea:
3.
Kaitlyn's idea is to "take away the area of the
garden." Explain how to solve the problem
about the area of the walkway by using this
idea. Explain clearly how to apply one or both
of the moving and additivity principles on
a.
area in this case.
b. Now solve the problem about the area of
the walkway in another way than you did in
part (a). Explain your reasoning.
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An area problem: The Johnsons are planning to build a 5-foot-wide brick walkway around their rectangular garden, which is 20 feet wide and 30 feet long. What will the area of this walk- way be? Before you solve the problem yourself, use Kaitlyn's idea: 3. Kaitlyn's idea is to "take away the area of the garden." Explain how to solve the problem about the area of the walkway by using this idea. Explain clearly how to apply one or both of the moving and additivity principles on a. area in this case. b. Now solve the problem about the area of the walkway in another way than you did in part (a). Explain your reasoning.

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Step 1

Obtain the diagram using the given information as shown below.

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Step 2

a)

According to Kaitlyn’s idea, take away...

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