Answer: 
Step-by-step explanation:
Equilateral triangle has equal sides, let the side be
, then the perimeter is 
Therefore:



To find the altitude , we will apply Pythagoras theorem , that is

Therefore:



take the square root of both sides

Answer:
D) 96 is closest
Step-by-step explanation:
12x7=84
1/2(8)(4)=16
84+16=100
A = 30
B = 45
C = 160
D = 96
10% of 75 is 7.5
1% of 75 is .75
.1% of 75 is .075
.5 of 75 is .375
Answer:
144 it is D
Step-by-step explanation:
-4(4)=-16
3(1/7)=3/7
I think that’s what you are asking...