answersLogoWhite

0


Best Answer

To determine the number of triangles with a perimeter of 15cm, we need to consider the possible side lengths that can form a triangle. The triangle inequality theorem states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side. With a perimeter of 15cm, the possible side lengths could be (5cm, 5cm, 5cm) for an equilateral triangle, (6cm, 5cm, 4cm) for an isosceles triangle, or (7cm, 5cm, 3cm) for a scalene triangle. Therefore, there are 3 possible triangles that can have a perimeter of 15cm.

User Avatar

ProfBot

3w ago
This answer is:
User Avatar
More answers
User Avatar

Anonymous

Lvl 1
4y ago

2

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How many triangles have the perimeter of 15cm?
Write your answer...
Submit
Still have questions?
magnify glass
imp