The values of x for the questions posed are : 14.12 and 2.8 respectively.
Using the Altitude theorem :
Now we have ;
30² = 34 × DC
30²/34 = DC
DC = 26.47
Using pythagoras;
x² = 30² - 26.47²
x² = 900 - 700.6609
x² = 199.3391
x = √199.3391
x ≈ 14.12
Hence, the value of x is 14.12 units
2.)
Similar to the figure drawn above ;
4.6² = 5.8 × DC
4.6²/5.8 = DC
DC = 3.65
Using pythagoras;
x² = 4.6² - 3.65²
x² = 21.16 - 13.3225
x² = 7.8375
x = √7.8375
x ≈ 2.80
Hence, the value of x is 2.8 feets (nearest tenth)