write the missing raduis or diameter.
1) d =________ 5) d = 4 3/4 in
r = 21cm r =_________
2) d =_______
r = 26.3 dm 6)d = 3 yds
r =
3) d =_______
r = 14 m
4) d = 18.4 ft
r = __________
i donot understand your question
I think I see two columns hidden in there
The formula to use on all of these is d = 2r.
Generally it is better to state the known information first, then calculate what is unknown.
1. r = 21cm
d = 2x21cm = 42cm
2. r = 26.3dm
d = 2x26.3dm = 52.6dm
3. r = 14m
d = 2x14m = 28m
4. d = 18.4ft
r = d/2 = 18.4/2 ft = 9.2ft
5. d = 4 3/4 in
r = d/2 = (4 3/4)/2 in = 2 3/8 in
To find the missing radius or diameter, we need to use the formulas for finding the radius and diameter of a circle.
The formulas are:
diameter (d) = 2 * radius (r)
radius (r) = diameter (d) / 2
Let's solve each problem step by step:
1) Given d = ________ and r = 21 cm
To find the diameter, we use the formula d = 2r.
Substituting the given radius, we have:
d = 2 * 21 cm = 42 cm.
So, d = 42 cm.
2) Given d = ________ and r = 26.3 dm
To find the diameter, we use the formula d = 2r.
Substituting the given radius, we have:
d = 2 * 26.3 dm = 52.6 dm.
So, d = 52.6 dm.
3) Given d = ________ and r = 14 m
To find the diameter, we use the formula d = 2r.
Substituting the given radius, we have:
d = 2 * 14 m = 28 m.
So, d = 28 m.
4) Given d = 18.4 ft and r = ________
To find the radius, we use the formula r = d / 2.
Substituting the given diameter, we have:
r = 18.4 ft / 2 = 9.2 ft.
So, r = 9.2 ft.
5) Given d = 4 3/4 in, we need to convert this mixed number to an improper fraction.
4 3/4 in = (4 * 4 + 3)/4 in = 19/4 in.
To find the radius, we use the formula r = d / 2.
Substituting the given diameter, we have:
r = (19/4) in / 2 = 19/8 in.
So, r = 19/8 in.
6) Given d = 3 yds, we need to convert this measurement to inches since the radius is usually given in inches.
1 yd = 36 inches.
So, 3 yds = 3 * 36 in = 108 in.
To find the radius, we use the formula r = d / 2.
Substituting the given diameter, we have:
r = 108 in / 2 = 54 in.
So, r = 54 in.