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secondary 3 | A Maths
4 Answers Below
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need help with finding the area of each of the following figures, length is in cm
pls explain too :) very confused about this
Date Posted: 3 years ago
Views: 481
Need me to derive the formula?
yep sure :)
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First two
Date Posted:
3 years ago
thx :)
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The area of a triangle is given by the formula 1/2 x a x b x sin C where C is the included angle between the lengths a and b. In the special case where the included angle is 90, we get 1/2 x a x b which is the formula for a right angled triangle.
Date Posted:
3 years ago
That formula involving the sine is not exactly called the sine rule though.
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A little proof for the area formula which hopefully you can understand
Date Posted:
3 years ago
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