Two similar posters have perimeters of \(20 ... larger poster will be \(24 \times 16 = 384 \text{cm}^{2}\). The area of triangle A is \(216 \text{cm}^{2}\). The ratio of the side lengths of ...
Practising converting metric units will help with this process. The triangles are identical. The area of one triangle is equivalent to half of the area of the rectangle. The area of the rectangle ...
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