Question

Sin theta=6/10,BC=12cm find AC.?

Answer 1

seee solution in pic .....

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Answer 2

Answer:

Solution:

The smallest angle will be opposite the smaller side.

Hence, Cos theta = 5² + 6² - 3² / 2×5×6

= 25 + 36 - 9/60

= 52/60

= 13/15

Sin² = 1- (13/15)²

= 1 -169/225

= 56/225

Sin theta = SqrtRoot(4×14/15×15)

= 2√14/15

= 2/15√14

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