Answer:
not sure ask teacher for help
Step-by-step explanation:
ok
Hello!
To find the base length you use the Pythagorean Theorem

c is the slant height
a is half the base length
b is the height
Put in the values you know

Square the numbers

Add

Take the square root of both sides

Simplify

Hope this helps!
Answer:
I think b because it goes from most to least sorry if u can't understand