You didn't tell us what the choices are, so there's
nothing to pick from.
The most accurate estimation of (54 - 16) is 38 .
The answer to this is 30.41 due to the zero the answer cannot be moved on so it will stay the same.
There's really no such thing as the value of a triangle.
Every triangle has three sides, three angles, a base, a height, and an area,
and there could be problems that ask us to find any one of those.
Whatever we need to find, the process is always the same:
-- Take the information that's given.
-- Gather up everything you can remember that talks about a relationship
between what you're given and what you need to find.
-- Use them together to find the missing value.
