Jawaban:
7. A. 1
8. D. 4 cm
Penjelasan dengan langkah-langkah:
7. AB² = BC² - AC²
AB² = 5² - 4²
AB² = 25 - 16
AB² = 9
AB = √9
AB = 3 cm
2x + 1 = 3
2x = 3 - 1
2x = 2
x = 1 cm
8. a² = 10,4² - 9,6²
a² = 108,16 - 92,16
a² = 16
a = √16
a = 4 cm
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Verified answer
Jawaban:
7. A. 1
8. D. 4 cm
Penjelasan dengan langkah-langkah:
7. AB² = BC² - AC²
AB² = 5² - 4²
AB² = 25 - 16
AB² = 9
AB = √9
AB = 3 cm
2x + 1 = 3
2x = 3 - 1
2x = 2
x = 1 cm
8. a² = 10,4² - 9,6²
a² = 108,16 - 92,16
a² = 16
a = √16
a = 4 cm