Question

1. reasoning use a ruler to measure each side of the figure in inches. what is the perimeter of the figure?

find the perimeter of each figure.
10.
11.

1. 3 in. 5 in. 4 in.
2. 5 cm 1 cm 1 cm 5 cm
3. 9 cm 9 cm
4. 5 cm 5 cm 6 cm 6 cm 6 cm
5. reasoning if the length of one side of a square is 3 inches, what is the perimeter of the square? explain your answer.

Explanation:

Problem 9:

Step1: Assume rectangle side lengths

Let length $l=3$ in, width $w=2$ in.

Step2: Calculate perimeter

$P=2(l+w)=2(3+2)=10$ in

Problem 10:

Step1: Identify figure dimensions

Length=7 units, width=2 units.

Step2: Calculate perimeter

$P=2(7+2)=18$ units

Problem 11:

Step1: Count outer edges

Trace the figure: total edges=24 units.

Step2: State perimeter

$P=24$ units

Problem 12:

Step1: Sum all triangle sides

$P=3+4+5$

Step2: Compute total

$P=12$ in

Problem 13:

Step1: Sum all rectangle sides

$P=5+1+5+1$

Step2: Compute total

$P=12$ cm

Problem 14:

Step1: Calculate square perimeter

$P=4\times9$

Step2: Compute total

$P=36$ cm

Problem 15:

Step1: Sum all polygon sides

$P=6+5+5+6+6$

Step2: Compute total

$P=28$ cm

Problem 16:

Step1: Apply square perimeter formula

$P=4\times s$, $s=3$ in

Step2: Compute total

$P=4\times3=12$ in

Answer:

1. 10 inches (estimated; actual may vary by measurement)
2. 18 units
3. 24 units
4. 12 inches
5. 12 cm
6. 36 cm
7. 28 cm
8. 12 inches (A square has 4 equal sides, so perimeter is $4\times3=12$ inches)