pundertale
contestada

if the radius of a circle with center 0 is 15.5, and the measure of angle AOB is 90, what is the length of arc AB?
7.75
7.75π
10
10π

I'm stupid when it comes to math.
surprised I made it here.​

if the radius of a circle with center 0 is 155 and the measure of angle AOB is 90 what is the length of arc AB775775π1010πIm stupid when it comes to mathsurpris class=

Respuesta :

musiclover10045

The circumference of the circle is found using the formula C = 2 PI r

Circumference = 2 *PI * 15.5 = 31pi

The angle is 90 degrees, which is 1/4 of a complete circle ( 360 degrees).

The arc length would be 1/4 of the circumference:

Arc length = 31pi / 4 = 7.75PI

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