if the circumference of a circle is dTT,then the circumference of a semi-circle is.?

0 ⤊

if the circumference of a circle is dTT,then the circumference of a semi-circle is.?

a. 2dTT
b. dTT/2
c. .5(dTT)
d. b and c

2006-10-05 03:55:53 · 3 answers · asked by cave_21man 1 in Science & Mathematics ➔ Medicine

3 answers

A semi-circle is half of a circle. It's circumference is also half the circumference of a full circle. Therefore, the answer is (d), because b and c are both the correct answer.

2006-10-05 06:39:51 · answer #1 · answered by عبد الله (ドラゴン) 5 · 0⤊ 0⤋

TTr =1/2 TTd
2 TTr is the circumference. R is radius and it`s half diameter.

2006-10-07 02:55:22 · answer #2 · answered by J.SWAMY I ఇ జ స్వామి 7 · 0⤊ 0⤋

the circumference is the distance around the circle (like if you were to walk around it). You should be able to take it from there.

2006-10-05 03:59:16 · answer #3 · answered by Anonymous · 0⤊ 0⤋