Answer:
B. 16.19
Explanation:
We have given height to width ratio of two similar rectangles
Hence, we solve using Proportionality
Height a/Width a = Height b/Width b
21/34 = 10/w
Cross Multiply
21 × w = 34 × 10
w = 34 × 10/21
w = 16.19047619
Approximately to decimal places = 16.19
Option B is correct