Mr. drew wants to build a square sandbox with an area of 400 square feet. what is the total length of wood mr. drew needs to make the sides of the sandbox?

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

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a28=58

step-by-step explanation:

a1=a1+(n-1)d

a28= 4+ (28-1)2

a28=4+(27)(2)

a28=4+54

a28=58

113.42

i hope that is right.

step-by-step explanation: