Answer:
the missing length is 14 feet.
Step-by-step explanation:
a = L × W
168ft² = 12 × W - divide both sides of the equation by 12
- 168 ÷ 12 = 14
168ft² = 12 × 14
We can express it at 5 (a+6)
Answer:
2340
Step-by-step explanation:
Formulae for sum of interior angles is 180(n-2)
Whereby n=number of sides

Answer:
x = 2.6
Step-by-step explanation:
2x + 5.2 = 0
2x = -5.2
x = -5.2 / 2
x = -2.6