3 years ago

Find the radius of a circle in which the central angle of (pie /4 ) radian determines a sector with an area of 86m^2

1 answer:

6 0

Area of sector = 1/2 * r^2 * x where r = radius and x = angle in radians

86 = 1/2 * r^2 * pi/4

r^2 = 2 * 86 * 4 / pi = 219

r = sqrt 219

= 14.80

You might be interested in

HELPPPPP!!!! MEEE!!! PLEASE!!! ASAPPP!!!!

mario62 [17]

Umm, what grade are you in . i’ll see if i can help

6 0

2 years ago

Christina biked 36 miles in 6 hours. If she biked at a constant speed, how many miles did she ride in one hour?

Ahat [919]

Answer:

Step-by-step explanation:

because you divided the amount of mile by the amount of time it took to get your answer

5 0

2 years ago

Read 2 more answers

What is the perimeter of A’B’C’D’?

Sophie [7]

$\displaystyle\bf\\\textbf{At any translation of a quadrilateral the sides remain the same,}\\\\\textbf{the angles remain the same.}\\\\\textbf{It turns out that the quadrilateral remains the same.}\\\\P_{A'B'C'D'}=P_{ABCD}=AB+BC+CD+DA=\\\\~~~~~~~~~~~~~~=2.2+4.5+6.1+1.4=\boxed{\bf14.2}$

5 0

2 years ago

What does the ratio 2 frogs : 5 turtles mean?

Reptile [31]

Hi,

That means on 2 frogs in some group there are 5 turtles.

Hope this helps.
r3t40

7 0

2 years ago

The measure of angle is 5. The equivalent measurement in degrees is...

balu736 [363]

Answer:

300 degrees

Step-by-step explanation:

pi should be 180 degrees so 5*180/3 = 5*60=300

6 0

11 months ago