It Depends On What You are Making for Example If You Want To Make A Cupcake You Going To Measure And See How Many Cups Of Water and All The Things They Need To Make The Cupcake You Probably Need 3 Cups. You Should Be More Specific With Your Question.
Answer:
add all the sides that you have and subtract it from 180
Step-by-step explanation:
1: 9 1/3
2: 12 1/2
3: 14 3/4
Step-by-step explanation:
A=BH
H=A/B
B=A/H
B = Base
H = Height
A = Area
Hope this help!
Yea so whats the question or is that just a fact<span />