Jika AF-//DE, maka keliling bangun tersebut adalah....

AB = √AF² - BF²
= √17² - 15²
= √289 - 225
= √64
= 8 cm
K = AF + AB + BC + CE + EF
= 17 + 8 + 15 + (17 + 17) + (8 + 8)
= 40 + 34 + 16
= 90 cm
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[answer.2.content]100 Contemporary Concrete Buildings (JUMBO)
100 Contemporary Concrete Buildings (JUMBO)
AB = √AF² - BF²
= √17² - 15²
= √289 - 225
= √64
= 8 cm
K = AF + AB + BC + CE + EF
= 17 + 8 + 15 + (17 + 17) + (8 + 8)
= 40 + 34 + 16
= 90 cm
semoga membantu
[answer.2.content]