Step-by-step explanation:
(14)
Since the rope encloses the circular pool.
Therefore, circumference of pool c = 94.2 inches
Circumference of circle is given by the formula:
[tex]c = \pi \: d \\ \\ d = \frac{c}{\pi} \\ \\ = \frac{94.2}{3.14} \\ = 30 \: inches \\ hence \: diameter \: of \: pool \: = 30 \: inches \\\\\bold{(15)} \\ Area \: of \: trapezoid \\ = \frac{1}{2} \times (68 + 36) \times 30 \\ = 104 \times 15 \\ = 1,560 \: {ft}^{2} \\ [/tex]
