For question 2.) The value of the missing part of the triangle would be = 20.4.
How to calculate the missing value of the given triangle?
To determine the missing length of the given triangle, the following steps should be taken as follows:
The rule of SOHCAHTOA should be obeyed such that;
Tan ∅ = Opposite/adjacent
Opposite = X
adjacent = 17
That is;
Tan 48° = X/17
X = 1.200127243×17
= 20.4