25 square centimetres !
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Then the square will have 4 equal sides of 5cm with a perimeter of 20cm and an area of 25 square cm
The surface area is 750 cm^3
To find the area of a triangle, you can use the formula: Area = 0.5 * base * height. In this case, the base is 5cm and the height is 7cm. Plugging these values into the formula, we get Area = 0.5 * 5cm * 7cm = 17.5 square centimeters. Therefore, the area of the triangle is 17.5 square centimeters.
10 square cm
If the dimensions given are the length and the width, the area is determined by multiplying the length X width (5 X 3 = 15 sq cm).