3 years ago

What is the measure of the central angle of a circle with radius 30 centimeters that intercepts an 18π centimeters arc?

1 answer:

8 0

If radius = 30, the circumference = 2*PI *radius = 188.4955592154 cm
The arc = 18*PI cm = 56.5486677646 
The arc is ( 56.5486677646 / 188.4955592154) = one third of the

circumference and so it subtends a central angle of 120 degrees.

You might be interested in

A recipe calls for 2Start Fraction 3 over 4 End Fraction cups of sugar. How many fourths is that? A. 3 B. 8 C. 11 D. 14

pickupchik [31]

I’m pretty sure that would be B

4 0

3 years ago

Read 2 more answers

If a storm window has an area of 640 square inches, what is the equation to find the dimensions when the window is 20 inches hig

Lyrx [107]

Area = width * height
since the window is 20 inches higher than the width:
width +20 = height

640 = width * width+20
640 = width^2 +20*width
width^2 +20*width - 640 = 0
width = 17.203
**********************************************************
Double Check
if width = 17.203 then height = 37.203
area = 17.203 * 37.203 = 640 square inches Correct!!

8 0

3 years ago

Brian borrowed a 20 foot extension ladder to use when he paints hes house. If he sets the base of the ladder 6 feet from the hou

iren [92.7K]

Answer:

It is 20.9feet

Step-by-step explanation: