Use properties to find 24 + 28 + 26
24 + 28 + 26 = 28 + + 26
= 28 + (24 +
= 28 +
=
use the property to recorder the addends.
use the property to group the addends
use mental math to add

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units