5. In AABC, 2B = 90°, AB = 5cm and AC = 13 cm, Then BC = ?
Answers
Answered by
1
Answer:
BC = 12 cm
Step-by-step explanation:
5² + BC² = 13²
BC² = 13² - 5²
BC² = 144
BC = √144
BC = 12
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Answered by
0
Answer:
by Pythagoras theorem
(AC)² = (AB)² + (BC)²
(13)² = (5)² + (BC)²
169 = 25 + (BC)²
(BC)² = 169 - 25
(BC)² = 144
BC = 12
Step-by-step explanation:
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