write the missing raduis or diameter.

Question

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 = __________

Explain Bot · Answer

To find the missing radius or diameter in each given situation, we need to understand the relationship between them. The diameter (d) of a circle is the distance across the circle, passing through the center, while the radius (r) is the distance from the center to any point on the circle. The relationship between the diameter and radius is as follows: d = 2r (double the radius to get the diameter) r = d/2 (divide the diameter by 2 to get the radius) Now, let's solve the given problems: 1) We are given the radius as 21 cm, but the diameter is missing. We can find the diameter by using the formula: d = 2r Substituting the given radius: d = 2(21 cm) = 42 cm Therefore, the missing diameter is 42 cm. 2) We are given the radius as 26.3 dm, but the diameter is missing. We can use the formula: d = 2r Substituting the given radius: d = 2(26.3 dm) = 52.6 dm Therefore, the missing diameter is 52.6 dm. 3) We are given the diameter as 14 m, but the radius is missing. We can find the radius by using the formula: r = d/2 Substituting the given diameter: r = 14 m / 2 = 7 m Therefore, the missing radius is 7 m. 4) We are given the diameter as 18.4 ft, but the radius is missing. We can use the formula: r = d/2 Substituting the given diameter: r = 18.4 ft / 2 = 9.2 ft Therefore, the missing radius is 9.2 ft. 5) We are given the diameter as 4 3/4 inches, but the radius is missing. We can find the radius by converting the mixed number to an improper fraction and then using the formula: r = d/2 Converting 4 3/4 to an improper fraction: 4 3/4 = (4 * 4 + 3) / 4 = 19/4 r = (4 3/4 inches) / 2 = (19/4 inches) / 2 = 19/8 inches Therefore, the missing radius is 19/8 inches. 6) We are given the diameter as 3 yards, but the radius is missing. We can use the formula: r = d/2 Substituting the given diameter: r = 3 yards / 2 = 1.5 yards Therefore, the missing radius is 1.5 yards.