If the radius of a circle is 10 feet, how long is the arc subtended by an angle measuring 81°?
a) 9π feet
b) 2/9π feet
c)9/5π feet
d) 9/2π feet

The length of arc is feet

D is correct

Step-by-step explanation:

Given: If the radius of a circle is 10 feet and arc subtended by an angle measuring 81°

Formula:

where,

Length of arc = L?

Radius of circle, R= 10 feet

Central angle, Ф=81°

First we will change 81 degree to radian

In radian

Substitute the value into formula

feet

Hence, The length of arc is feet

hi,

you half the rectangle that you ae asking about so then you would see the scale factor of 1/2 the one u have selected, the one on top is half.

hope this !