Right
To find the perimeter of something all you have to do is, MEASURE THE DISTANCE AROUND THE OBJECT, for example if you have a triangle and the left side is 8cm, the right side is 5cm, and the bottom is 3cm, add the three measurements, 8cm + 5cm + 3cm = 16cm
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.
a triangle that looks like this ,,,,,,,,/\ ,,,,,,, 3cm /--\ 3cm ,,,,,,/----\ ,,,,, ,,,,,-------,,,,,,
To find the area of a triangle, you use the formula: Area = 1/2 * base * height. In this case, the base is 2cm and the height is 5cm. Plugging these values into the formula, we get: Area = 1/2 * 2cm * 5cm = 5 square centimeters. Therefore, the area of the triangle is 5 square centimeters.
15 cm