× Panjang ED
ED = ½BD
= ½ . 16
= 8 cm
× Panjang EA
EA² = AD² - ED²
EA² = 17² - 8²
EA² = 289 - 64
EA² = 225
EA = 15 cm
× Panjang EC
EA : EC = 5 : 2
15 : EC = 5 : 2
15 x 2 = 5 x EC
30 = 5 x EC
6 = EC
× Luas Layang-layang
L = AC x BD x ½
= 21 x 16 x ½
= 21 x 8
= 168 cm²
Jadi jawabannya D
× Mohon maaf bila ada kesalahan. Semoga membantu^^ ×
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× Panjang ED
ED = ½BD
= ½ . 16
= 8 cm
× Panjang EA
EA² = AD² - ED²
EA² = 17² - 8²
EA² = 289 - 64
EA² = 225
EA = 15 cm
× Panjang EC
EA : EC = 5 : 2
15 : EC = 5 : 2
15 x 2 = 5 x EC
30 = 5 x EC
6 = EC
× Luas Layang-layang
L = AC x BD x ½
= 21 x 16 x ½
= 21 x 8
= 168 cm²
Jadi jawabannya D
× Mohon maaf bila ada kesalahan. Semoga membantu^^ ×