No, Yes, No.
The sum of the lengths of two sides of a triangle must be greater than the length of the third so the following eight triangles will do: (1,8,8), (2,7,8), (3,6,8), (3,7,7), (4,5,8), (4,6,7), (5,5,7) and (5,6,6).
The 3 sides have different lengths
Pie equals 3.14159267584921
A square's sides have equal lengths, and an equilateral triangle's sides also have equal lengths.
A scalene triangle has sides of different lengths while an equilateral triangle has sides of equal lengths
The sum of the lengths of two sides of a triangle must be greater than the length of the third so the following eight triangles will do: (1,8,8), (2,7,8), (3,6,8), (3,7,7), (4,5,8), (4,6,7), (5,5,7) and (5,6,6).
18
There are not any following lengths in the question to compare. Using the sizes given, and Pythagorean Theorem, the Hypotenuse of the triangle is 36.76 - which will have to do!
A scalene triangle has 3 sides of different lengths An isosceles triangle has 2 sides of equal lengths An equilateral triangle has 3 sides of equal lengths
The 3 sides have different lengths
Pie equals 3.14159267584921
An isosceles triangle has 3 sides 2 of which are equal in lengths An equilateral triangle has 3 sides all of which are equal in lengths
All three sides have different lengths.
A square's sides have equal lengths, and an equilateral triangle's sides also have equal lengths.
A scalene triangle has sides of different lengths while an equilateral triangle has sides of equal lengths
An EQUILATERAL triangle has all three sides the same length. An ISOSCELES triangle has two sides with the same length. A SCALENE triangle has all three sides different lengths.
The sum of the lengths of any two sides of a triangle is greater than the length of the third side.