The answer for this question is 12 56
Answer:
option A
Step-by-step explanation:
since the given triangle is an isosceles triangle it's two remaining sides are equal
let the length of missing side be x
using pythagoras theorem
a^2 + b^2 = c^2
x^2 + x^2 = 22^2
2x^2 = 484
x^2 = 484/2
x = 
x = 
Answer:600m
Step-by-step explanation:speed =54×1000/3600=15m/s
Since speed =distance /time
Therefore distance =speed *time
=15*40=600m