Wong Fang Ying's answer to Jes's Primary 5 Maths question.
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1st step: Calculate area of paper to be cut from
2nd step: Calculate area of triangle to be cut (1 triangle)
3rd step: Find number of triangles that can be cut out from the paper by dividing the area of the original paper by the area of 1 triangle
2nd step: Calculate area of triangle to be cut (1 triangle)
3rd step: Find number of triangles that can be cut out from the paper by dividing the area of the original paper by the area of 1 triangle
Date Posted:
6 years ago
Why is the Area of triangle 4 × 3? Shouldnt it be 1/2 × 4 × 3?
My apologies, forgot to multiply by 1/2, yes, you are correct, it's 1/2 x 4 x 3 for the area of 1 triangle
Area of 1 triangle = 0.5 cmx 4cm x 3cm = 6cm square
Number of triangles that can be cut = 1260 divide by 6 = 210
Area of 1 triangle = 0.5 cmx 4cm x 3cm = 6cm square
Number of triangles that can be cut = 1260 divide by 6 = 210
Thanks
Sure thing
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