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3 years ago

If the radius of a circle is 10 feet, how long is the arc subtended by an angle measuring 81°?

1 answer:

mihalych1998 [28]3 years ago

4 0

Circumference of entire circle = 2 * PI * 10
circumference of entire circle = 62.832 feet
81 degrees is (9/40) of a circle
62.832 * (9/40) = 14.1372 

Source:
http://www.1728.org/radians.htm

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3 years ago

Answer................::.

SashulF [63]

<h3>Answer: 33</h3>

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Work Shown:

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4 years ago

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3 years ago

Find the value of x. Round to the nearest tenth.

denpristay [2]

Answer:

$\displaystyle x \approx 38.2 ^{\circ}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtract Property of Equality

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Step 1: Identify

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Round: $\displaystyle x \approx 38.2 ^{\circ}$

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