Question

A length of wire 360 m long is cut into equal lengths which are then bent into equalateral triangles with side 15 cm. How many triangles can be made out of the wire.

Answer 1

Perimeter of the equilateral triangle = 15 x 3 = 45 cm

45 cm = 0.45 m

⇒ One triangle needs 0.45m of the wire

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Number of triangles that can be made = 360 ÷ 0.45 = 800

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Answer: 800 triangles can be made out of 360m

Answer 2

Answer:

8 triangles

Step-by-step explanation:

length of the wire =360 m

length of one side of the triangle =15cm

                                           triangle = 45 cm

                                                      = covert 360 m in cm

                                                       = 36000 cm

                                                        divide 45 cm

                                                      =36000/45

                                                        = 800 triangles