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secondary 2 | Maths
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Hi I need help with question 9c. Thanks
Date Posted: 6 years ago
Views: 390
Notice that both triangles have the same vertical height. You can calculate area of one triangle first. Subtract it from the total.
Then find the length if AB using formula for area of triangle.
Otherwise, just use the formula of area of trapezium.
Area of trapezium = ½(a+b)(h)
a , b are lengths of each of the parallel sides.
h is the height.
Then find the length if AB using formula for area of triangle.
Otherwise, just use the formula of area of trapezium.
Area of trapezium = ½(a+b)(h)
a , b are lengths of each of the parallel sides.
h is the height.
Oh yah，I don't know how I didn't think of that, thanks!
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done
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Ok?
Date Posted:
6 years ago
Yup, thanks for your help :D
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