1 answer:
Hint:
Diameter(d)= 2 radius(r)
circumference= 2πr= πd
1. diameter= 19 × 2 = 38 inches
circumference= 3.18(38) = 119 inches (3 s.f.)
Note that I use 3.18 instead of π because the question states to use 3.14 for π.
Likewise, if you are given the diameter, divide it by 2 to find radius. Let's try a question which only gives you the diameter.
4. radius= 22 ÷ 2 = 11cm
circumference= 3.14(22) = 69.1cm (3 s.f.)
You might be interested in
Answer:
65.9734457254 or 65.97
Step-by-step explanation:
c= pi x diameter
c= pi x (10.5 x 2)
c= pi x 21
= 65.9734457254
I think that is B, C, or. C
Answer:
f ( x ) = x² - 1
Step-by-step explanation:
hope this will help
Answer:
((3+5)/2,(6+11)/2)=(4,8.5)
Answer:
3/5=360 mph 11/12=550 4/15=160
Step-by-step explanation: