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Find the area of the triangle where AB = 10cm, BC = 8cm, ∠CAB = 30

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A25cm²

B20cm²

C15cm²

D12cm²

Answer:

B. 20cm²

Read Explanation:

Area = 1/2 × ab × sinx

= 1/2 × 10 × 8 × sin 30

= 1/2 × 80 × 1/2

= 20cm²

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image.png

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In the adjoining figure line l is parallel to m. What is the value of 2x+y ?

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