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PB = BR = 1/2 x 8 = 4 cm
krna QB dan PR saling tegak lurus, maka gunakan Phythagoras:
QB² = QR² - BR²
QB² = 8² - 4²
QB² = 64 - 16
QB² = 48
QB = √48
QB = 6,93
semoga membantu ya :)
PB = BR = 1/2 x 8 = 4 cm
gunakan rumus phytagoras:
QB² = QR² - BR²
QB² = 8² - 4²
QB² = 64 - 16
QB² = 48
QB = √48
QB = 6,93
jadi panjang sisi QB adalah 6,93 cm