Question

The length of the side of an equilateral triangle is 4x + 2, and the perimeter is 150 cm, find the side of the triangle.​

Answer 1

Step-by-step explanation:

perimeter of equilateral triangle=3(a)^2

150= 3(4x+2)

150=12x+6

12x=144

x=12

side=4×12+2=50cm

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Answer 2

Answer:

50

Step-by-step explanation:

since it's an equilateral triangle therefore all sides will be equal

using formula of perimeter of equilateral triangle = 3 × side

150=3(4x+2)

150/3= 4x+2

50=4x+2

therefore all sides are of 4x+2=50

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