The formula of the altitude of an equilateral triangle with side x:

We have:

Substitute:
No shes not.
You need to add all the sides if finding perimeter
Answer: it’s either 5x^3 -4x^2-7x or
-3x^3-4x^2-7x
Step-by-step explanation:
i put it in my calculator
Answer:
Obtuse
Step-by-step explanation:
Has one obtuse angle, i hope this helps you
Ratio of 1:3:5
Sum= 1+3+5 = 9 total parts
dividing 72kg
For 1: = 1/9 * 72 = 8kg
For 3: = 3/9 * 72 = 24kg
For 5: = 5/9 * 72 = 40kg