bestmanthatever
bestmanthatever bestmanthatever
  • 23-04-2017
  • Mathematics
contestada

The diameter of a circle is 20 miles. What is the angle measure of an arc bounding a sector with area 10​ square miles?

Respuesta :

irspow
irspow irspow
  • 23-04-2017
A=(απr^2)/360=(απd^2)/1440   (r^2=d^2/4)

α=1440A/(πd^2)

s=απd/360  (where s=arc length) so

s=(1440Aπd)/(360πd^2)

s=4A/d and since A=10mi^2 and d=20mi

s=(4*10)/20

s=2 miles
Answer Link

Otras preguntas

How many cubes with 5-inch sides will completely fill a cube that is 10 inches on a side? (1) 50 (3) 8 (2) 25
(9x) (4x^3) (2x^4y) =
Which of the following threats did soldiers face in the trenches? fire starvation collapse disease
In what territory was the Tree of the Great Peace planted?
Find the equation of the line passing through the points (0,1) and (-2,0). Write the equation in slope-intercept form.
What factors do you think a country’s leaders consider when deciding whether to surrender or fight?
what is the most likely outcome for a cell that is not allowed to divide?
Legislative Branch - Define expressed powers.
What is the prepositional phrase in the sentence below? The crowd gasped as the colorful hot air balloons slowly rose into the sky. hot air balloons into the sk
Do you think that Napoleon was a great leader? Explain.