Diameter of semicircle is 4 cm
so cicumference of circle is 4pi
since there are 4 semicircles, they add up to 2 circles
so total perimeter is 8pi
which when rounded off is 25.13 cm (2d. p.)
Answer:
2/3
Step-by-step explanation:
17/21-1/7
17/21-3/21
14/21=2/3
I think it's 36. Because 7x3=21 and 12x3=36
Answer:
Step-by-step explanation:whole divide it
3b^=27
b^=27/3
b^=9
take squre roote
b=3
c^