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primary 6 | Maths
| Measurement
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Date Posted: 2 years ago
Views: 506
rect = 2 △ADE
= 6×22 = 10×DC
DC= 13.2 cm (Ans)
= 6×22 = 10×DC
DC= 13.2 cm (Ans)
How is the rectangle equal to 2 times of the triangle?
You can view the triangle as having the base AD and perpendicular height AB.
The area of this triangle is 1/2 times AD times AB.
How about the rectangle? AD times AB.
Because of the extra “1/2” for the triangle, the area of the triangle will be half of the area of the rectangle - conversely, the area of the rectangle will be twice the area of the triangle.
The area of this triangle is 1/2 times AD times AB.
How about the rectangle? AD times AB.
Because of the extra “1/2” for the triangle, the area of the triangle will be half of the area of the rectangle - conversely, the area of the rectangle will be twice the area of the triangle.
Thank you...this helps alot
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find the area of this triangle
b x h x 1/2 = 22 x 6 x 1/2 = 66
we can find another set of base and height with the 10 cm
b x h x 1/2 = 10 x height x 1/2 = 66
66 divide by 1/2 divide by 10 = 13.2
13.2 = height = AB = CD
b x h x 1/2 = 22 x 6 x 1/2 = 66
we can find another set of base and height with the 10 cm
b x h x 1/2 = 10 x height x 1/2 = 66
66 divide by 1/2 divide by 10 = 13.2
13.2 = height = AB = CD
How can the base 10cm X height X 1/2 = 66cm sq?
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green rectangle area = ABCD area
Date Posted:
2 years ago
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similar
Date Posted:
2 years ago
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