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.
Infinitely many.
find the perimeter and area of a rectangle that is 15cm long and 5cm wide
Perimeter is the total of all the sides. Let's assume your part-question relates to a rectangle. Four sides: 2 x 8cm and 2 x 15cm. I'm sure you can work it out from there...
90cm (six sides x 15 = 6 x 15 = 90)
A balloon is an oval so perimeter of an oval is: Perimeter = 2π√(a² + b²)/2 So for a balloon with 'a' being 25cm and 'b' being 15cm (kind of average) Perimeter = 2π 10.60660171779821
it is 60cm
Infinitely many.
Perimeter = 8*15 = 120 cm
30cm
34 cm
Yes 3x5
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find the perimeter and area of a rectangle that is 15cm long and 5cm wide
1:1.23
An infinite number are possible.
3
The perimeter of the hexagon is 6 times 15 = 90 cm