a
20\(\sqrt{3}\)cm
b
10\(\sqrt{3}\)cm
c
5\(\sqrt{3}\)cm
d
4\(\sqrt{3}\)cm
Explanation
Correct Option
b
Video Explanation
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Discussions (1)
Michealubegirl
5 years ago
if you look at the triangle ,you observe that it a scalene triangle.Divide both side into equal half.Then you get your opposite which is 5√3 using 60°,then solve for 30° and you get 10√3.The sine to use is sin.
