Answer:
26.86
Explanation:
P = 5 + 7 + 7 + C {divided by} 2
C = d {times} π
= 5 {times} 3.14
≈ 15.71
P = 19 + 15.71 {divided by} 2
= 19 + 7.855
= 26.855
≈26.86
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