# Planimetrics - math problems

Study plane measurements, including angles, distances, and areas. In other words - measurement and calculation of shapes in the plane. Perimeter and area of plane shapes.

#### Number of problems found: 2136

• Parabola 3 Find the equation of a parabola with its focus at (0,2) and its vertex at the origin. ?
• Rhombus Find the length of each side of rhombus if the perimeter is 89 cm long.
• Square Calculate area of the square with diagonal 64 cm.
• Circle simple Circumference of a circle is 6.28. What is the area of the circle?
• Angles in triangle Calculate the alpha angle in the triangle if beta is 61 degrees and 98 gamma degrees.
• Road The angle of a straight road is approximately 12 degrees. Determine the percentage of this road.
• Mine Wheel in traction tower has a diameter 4 m. How many meters will perform an elevator cabin if wheel rotates in the same direction 89 times?
• Angle Determine the size of the smallest internal angle of a right triangle which angles forming the successive members of the arithmetic sequence.
• Hectares The rectangular land is 350m long and 200m wide. Calculate the area in hectares.
• Odometer The odometer is driven by the rotation of the wheel, whose diameter is 65 cm. After how many rotations, the wheel turns counter to the next kilometer?
• Median In the right triangle are sides a=96 dm b=31 dm. Calculate the length of the medians tc to the hypotenuse.
• Of the Of the formula S = the surface of the cuboid S=2. (ab+ac+bc) express unknown c. C =?
• Height Calculate height of the equilateral triangle if its perimeter is 8?
• Athlete How long length run athlete when the track is circular shape of radius 120 meters and an athlete runs five times in the circuit?
• Area of a circle The circumference of the circle is 150.72 centimeters. Calculate the area of the circle.
• Catheti The hypotenuse of a right triangle is 41 and the sum of legs is 49. Calculate the length of its legs.
• RPM An electric motor makes 3,000 revolutions per minutes. How many degrees does it rotate in one second?
• Equilateral triangle v2 Equilateral triangle has a perimeter 36 dm. What is its area?
• Area to perimeter Calculate circle circumference if its area is 254.34cm2
• Bicycle wheel Bicycle wheel diameter is 62 cm. How many times turns the bicycle on the road 1 km long?

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