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The measure of the two times of supplement of an angle is 40° less than 7 times the measure of the complement of the same angle. Find the measures of t...
A race track is in the shape of a rectangle with length of 30 metres and area of 4500 m2. A car takes 20 seconds to make one lap around the p...
Two identical cubes are joined together to form a cuboid. If each cube has a total surface area of 54 cm², what is the total surface area of the result...
Find the area of a regular hexagon whose side is half of the side of a square whose perimeter is 152 cm.
A circle touches all four sides of a quadrilateral. If AB = 12 cm, BC = 22 cm, and AD = 18 cm, then what is the length of CD?
A right triangle with sides 7 cm, 24 cm, and 25 cm is revolved about the side of length 24 cm. What is the volume of the solid obtained?
The total surface area of a cube is given as 486 cm². What is the volume of the cube?
If the ratio of areas of two circle is 25:36, then the ratio of their circumferences will be: