Question

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

Answer 1

Answer:

50cm

Step-by-step explanation:

perimeter of a equilateral triangle=3×side

p=3(4x+2)

150=12x+6

12x=144

x=12, so side =4(12)+2=50cm

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Answer 2

Step-by-step explanation:

Length of the triangle is 4x+2

All the sides of this triangle are equal.

perimeter of the triangle is 3a

where "a" is side of the triangle.

4x+2×3=150

4x+2=50

4x=48

x=12

Therefore the length of the side is 50cm