AB = 10cm, BC = 8cm, ∠CAB = 30 എന്ന ത്രികോണത്തിന്റെ വിസ്തീർണ്ണം കണ്ടെത്തുക

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A25cm²

B20cm²

C15cm²

D12cm²

Answer:

Area = 1/2 × ab × sinx

= 1/2 × 10 × 8 × sin 30

= 1/2 × 80 × 1/2

= 20cm²

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