Is it true or false that the circumference of a circle is about 3 times long as the radius?

False

Step-by-step explanation:The circumference of a circle is approximately three times its diameter. If you divide the circumference by its diameter, the constant ratio is called Pi, which is an irrational number shown with this symbol: For example, the circle below has a radius of 4.5 inches.

False

Step-by-step explanation:

Circumference = 2πr

                         = 2 * 22/7 * r

                         = 44/7 * r

                         ≈ 6.28 * r

Therefore, the circumference is approximately 6.28 times the radius

by definition, an arc subtended by a central angle of some given measure has the same measure. so .

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²