This equilateral triangle has a perimeter
of 60 mm. What is the length of side X?
X Х​

20 degrees

Step-by-step explanation:

well, if each side is equal and there are three sides that together add up to 60, you would divide 60 by 3 to get 20 degrees.

20mm

Step-by-step explanation:

An equilateral triangle has all equal sides. So the length of the sides is equal to P/3, where P equals the perimeter. Since in this question, the perimeter is 60, X would be equal to 60/3. Therefore, X=20mm, because 60/3=20.

answer: 10 turtles

step-by-step explanation: as turtles have four legs so 4.10=40 therefore birds are 4 which sue counted