2 years ago

The radius of a circle is 4 feet. What is the length of a 90° arc? HELP ME PLEASE

Mathematics

1 answer:

Elza [17]2 years ago

4 0

Answer:

6.3feet

Step-by-step explanation:

Given data

Radius= 4feet

The expression for the circumference of a circle is

C= 2πr

Substitute

C=2*3.142*4

C=25.136 feet

Also, a 90° arc is 1/4 of the circumference of a circle

Hence the length of the 90° arc is

=25.136/4

=6.284 feet

=6.3feet

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