Answer:
a. 3x = 45
15cm
Step-by-step explanation:
Given the perimeter of an equilateral triangle = 45cm .
Using the equation
3x = 45
Divide both sides by 3
x = 45/3
= 15cm
The length of each side of the triangle is 15cm because an equilateral triangle has its three sides equal
Answer:
hjv j
Step-by-step explanation:
kkj
Answer:
a = 12
Step-by-step explanation:
a² + 9² = 15²
a² = 15² - 9²
a² = 225 - 81
a² = 144
take the square root of both sides
a = 12
The circumference is 2PieR, so we'd multiply 1.65 by 2, and get 3.3.
Afterwards, we multiply 3.3 by 3.14, which is 10.362. Your answer is incorrect.
