2006-12-12 20:34:50 · 7 answers · asked by franchise 1 in Science & Mathematics ➔ Mathematics
If the radius of that half circle is on arc and is 8cm what would the circle be in cm
2006-12-12 20:39:45 · update #1
A semi-circle.
If the radius of a circle is 8 cm, then the circumference of the circle would be:
2πr = 2π(8) = 16π = 50.265 cm
The arc length of a semi-circle with the same radius would be half of that or:
8π = 25.133 cm
2006-12-12 21:17:45 · answer #1 · answered by Northstar 7 · 0⤊ 1⤋
A semi-circle
2006-12-12 20:37:24 · answer #2 · answered by Wal C 6 · 1⤊ 0⤋
A half circle is a semi-circle. It can also be called a 180 degree pieslice.
2006-12-12 20:50:08 · answer #3 · answered by phil 3 · 0⤊ 1⤋
It's a semi-circle
2006-12-12 20:39:40 · answer #4 · answered by HJ 2 · 1⤊ 1⤋
A semi circle...
2006-12-12 20:38:59 · answer #5 · answered by Eshwar 3 · 1⤊ 1⤋
a half circle.
2006-12-12 20:36:29 · answer #6 · answered by Star 5 · 1⤊ 1⤋
Protractor
2016-03-14 13:56:41 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Semi - Circle
1/2p • r²
2006-12-12 20:39:02 · answer #8 · answered by shingale 2 · 1⤊ 1⤋
a half circle or a cresent
2006-12-12 20:36:47 · answer #9 · answered by Caitlin 5 · 0⤊ 1⤋
To show proper respect, half a circle is called "cir" (pronounced "sir").
2006-12-12 22:32:14 · answer #10 · answered by Anonymous · 0⤊ 1⤋