Question

The side of an equilateral triangle is 3x +40cm
if its perimeter is 1020 cm, then 'X' is​

Answer 1

Answer:

Answer:x = 100

step by-step explanation:

Perimeter of equilateral triangle is 3 x it's side..

Side = 3x + 40

Perimeter = 3(3x+40)

1020 = 3(3x+40)

1020 / 3 = 3x+40

340 = 3x+40

340 - 40 = 3x

100 = x

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