Answer:
A ≈ 43.3 cm²
Step-by-step explanation:
the area (A) of an equilateral triangle is calculated as
A = 
( s is a side of the triangle )
given perimeter = 30 cm , then
s = 30 cm ÷ 3 = 10 cm
then
A = 
= 
= 25
≈ 43.3 cm² ( to the nearest tenth )
C and B is proportional relationships , because the proportional relationships always start at zero and the line must be straight !
Answer:
i need this toooooooooooooooooooo
Step-by-step explanation:
It should be 3 because you are going to be using the formation of 3√ 3•3•3
.
