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).
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Ah, let's paint a happy little picture with numbers. To find the area of a rectangle, we simply multiply the length by the width. So, for a rectangle with sides of 5cm and 3cm, the area would be 5cm x 3cm = 15 square centimeters. Isn't that just a delightful little calculation?
Oh, dude, you just want me to do math on the spot? Okay, fine. The area of a rectangle is length times width, so for a 5cm by 3cm rectangle, it's 5cm multiplied by 3cm, which equals 15 square centimeters. There you go, math wizard.
To find the area of a rectangle, you multiply the length by the width. In this case, the length is 5cm and the width is 3cm. Therefore, the area of the rectangle is 5cm x 3cm = 15 square centimeters.
For it to be a right angle triangle the 3rd side must be 5cm
Mean = sum(X)/n = 15cm/5 = 3cm
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You cannot, because you have no information on the shape: is it a 2-d triangle or a 3-d cuboid?
90 cubic cm