ABC is triangle. AB = 10 cm and BC = 16 cm. AD = 8 cm and is perpendicular to side BC. What is the length (in cm) of side AC?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 2√41
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Application |
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In the figure: 102 = x2 + 82 ⇒ 100 = x2 + 64 ⇒ x2 = 36 ⇒ x = 6 And a2 = (16 – x)2 + 64 ⇒ a2 = 100 + 64 ⇒ a = 2√41 cm |
