Answer B
One thing that gave it away was that we are dealing with a 30-60-90 triangle so in the final equation we should have (x=Any number) [tex]x\sqrt{3}[/tex] not square root two
The triangle ABC with ∠C as right angle , BC = 7 and ∠b = 30 degrees has AC as 7√3 / 3
A right angle triangle is a triangle that has one of its angle as 90 degrees. Therefore, the sides can be found using trigonometric ratios.
BC = 7 units
∠b = 30°
Hence, AC can be found as follows;
tan 30° = opposite / adjacent
tan 30 = AC / 7
cross multiply
AC = 7 tan 30
AC = 7 × 1 / √3
AC = 7 / √3
AC = 7√3 / 3
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