3 years ago

The circumference of a circular pool is 43.96 meters. What is the area in square meters? Use 3.14 for pi.

Mathematics

1 answer:

miss Akunina [59]3 years ago

4 0

Answer:

The answer is letter A

Step-by-step explanation:

Area of a circle in terms of radius:

A circle of radius = 6.996 or 7, or diameter = 13.99 or circumference = 43.96 meters

Area = π · r^2 = 3.14 * 7^2 = 153.86 square meters

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76 cm a 52 cm Find the area of the regular pentagon (the answer has one digit after the decimal point)

alekssr [168]

Answer:

98.8 cm²

Step-by-step explanation:

Hi there!

$A=\frac{1}{2} Pa$ where P is the perimeter of the pentagon and a is the apothem (the line going from the center of the pentagon one edge)

1) Find the perimeter

$P=5l$ where l is the side length

Plug in the side length 7.6 cm

$P=5(7.6)\\P=38$

Therefore, the perimeter of the pentagon is 38 cm.

2) Find the area

$A=\frac{1}{2} Pa$

Plug in the perimeter (38) and the apothem (5.2)

$A=\frac{1}{2} (38)(5.2)\\A=\frac{1}{2} (38)(5.2)\\A=\frac{1}{2} (197.6)\\A=98.8$

Therefore, the area of the pentagon is 98.8 cm².

I hope this helps!

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3 years ago

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luda_lava [24]

Answer: B

Step-by-step explanation:

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2 years ago

given the following system of equations, identify the type of system.x y = 6y = 3 - xconsistentinconsistentequivalent

lapo4ka [179]

Inconstant as there is no solution

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3 years ago

Hi what is 2/5 times 6/8

guajiro [1.7K]

Answer:

12/40 (simplified = 3/10)

Step-by-step explanation:

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5 x 8 = 40

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Read 2 more answers

47.2 is what percent of 118

earnstyle [38]

Answer:

you multiply both sides of the equation by x

you divide both sides of the equation by (2.5) to get x

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Step-by-step explanation:

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