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klemol [59]
3 years ago
12

Find the perimeter of the figure. Show all work (formulas, plugged in values, math calculations) for full credit. PLEASE HELP DO

IN AN HOUR

Mathematics
2 answers:
Yuri [45]3 years ago
5 0

Answer:

104.25 cm

Step-by-step explanation:

Perimeter = three sides + arc

Arc length: ½ × pi × diameter

½ × 3.14 × 25

39.25

Perimeter

39.25 + 20 + 25 + 20

104.25

Aleksandr-060686 [28]3 years ago
4 0

Answer:

Step-by-step explanation:

Semicircle:

diameter  = length of the rectangle = 25 cm

Half circumference = πd/2

= 3.14 * 25/2 = 39.25 cm

Perimeter of the figure = 39.25 + 20 + 25 + 20

= 104.25 cm

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