(10x + 4) + (5x-4) ≈ 180
solve for x and you get x≈12
plug 12 in to 5x-4 and you get 56
Solution:
<u>Note that:</u>
- Side₁ (Short side) = 15 meters
- Side₂ (Longer side) = 2(15) = 30 meters
- Perimeter = 2L + 2B
<u>Substituting the values into the expression:</u>
- 2L + 2B
- => 2(15) + 2(30)
- => 30 + 60
- => 90 m
The perimeter of the garden fence is 90 meters.
