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What is the surface area of rectangle solid that measures 5 by 8 by 9 inches?
314 square inches in total
What is the volume of a box that is 4x3x5 inches?
To find the volume of a box, you multiply its length, width, and height. In this case, the box is 4 inches long, 3 inches wide, and 5 inches high. Therefore, the volume of the box would be 4 x 3 x 5 = 60 cubic inches.
One Leg of a right triangle measures 5 and the other leg measures 12 How long is the hypotenuse?
a^2 + b^2 = c^2. Therefore, the hypotenuse is (5^2 + 12^2)^1/2
A family is looking at a scale model of the house they are buying The model measures 6 inches by 12 inches The actual house measures 30 feet by 60 feet What is the scale of the model house?
The scale of the house is the ratio of the model to the actual house. This ratio will be the same for both directions, or else the model would be useless. 6 inches is .5 feet, so the ratio is .5:30. You always want to write ratios as 1:something, so we double both side of the ratio and get 1:60. Likewise, 12 inches is one foot, so the ratio is 1:60 for the other dimension as well, as it should be.
What is the density of a 7000 gram brick that is 4 inches x 5 inches x 3 inches?
Density is mass divided by volume. A brick is a rectangular prism, the volume of which is length * height * width. 7000 grams / (4 * 5 * 3) = 7000 / 60j = 116 2/3 g/cubic inch
