Tolong dibantu ya....
Penjelasan dengan langkah-langkah:
1. PgsL = √(10² - (8-2)²) = √(100-36) = √64 = 8 cm
2. jarak = √(12² + (6-1)²) = √(144 + 25) = √169 = 13 cm
3. R = 3 + √(17² - 15²) = 3 + √(289 - 225) = 3 + √64 = 3 + 8 = 11 cm
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