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Three triangles of different sizes are drawn on the rectangular piece of paper below and painted grey. Given the rectangular paper has an area of 840cm^(2), find the area of the painted portions. (1)/(2)× b × h

Three triangles of different sizes are drawn on the rectangular piece of paper below and painted grey. Given the rectangular paper has an area of 840 cm2 840 \mathrm{~cm}^{2} , find the area of the painted portions.\newline12×b×h \frac{1}{2} \times b \times h

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Q. Three triangles of different sizes are drawn on the rectangular piece of paper below and painted grey. Given the rectangular paper has an area of 840 cm2 840 \mathrm{~cm}^{2} , find the area of the painted portions.\newline12×b×h \frac{1}{2} \times b \times h
  1. Calculate Total Area: The area of the rectangular paper is given as 840 cm2840\,\text{cm}^2. We need to find the area of the painted triangles.
  2. Use Triangle Area Formula: Each triangle's area can be calculated using the formula (12)×base×height(\frac{1}{2})\times\text{base}\times\text{height}. We need the base and height for each triangle to proceed.
  3. Add Up Triangle Areas: Assuming we have the base and height for each triangle, we would add up the areas of all three triangles to find the total painted area.
  4. Missing Measurements: However, we don't have the specific measurements for the bases and heights of the triangles. Without this information, we cannot calculate the areas of the triangles.

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