Square (second power, quadratic) - math word problems - page 145 of 148

Number of problems found: 2958

Numeric question
Is it possible a negative, irrational number?
Pipes
The water pipe has a cross-section 1903 cm². An hour has passed 859 m³ of water. How much water flows through the pipe with cross-section 300 cm² per 11 hours if water flows at the same speed?
Chord
In a circle with a radius r=60 cm is the chord, 4× longer than its distance from the center. What is the length of the chord?
Trunk
Calculate the length of the biggest fishing rod that can be inserted into the trunk of a car with dimensions 152 x 82 × 81 cm.
Box
Calculate the angle between box base 5 x 10 and body diagonal length 13.
Rotating cone II
Calculate the area of the surface of a rotating cone with base radius r=15 cm and height h=13 cm.
Gold wire
From one gram of gold was pulled wire 1.4 km length. What is its diameter if the density of Au is ρ=19.5 g/cm³?
Is right?
Is a triangle with sides 15, 66, and 68 right triangle?
Proof I
When added to the product of two consecutive integers larger one, we get the square larger one. Is this true or not?
Kitchen
The kitchen roller has a diameter of 78 mm and a width of 315 mm. How many square millimeters roll on one turn?
Rectangles
How many rectangles with area 8855 cm² whose sides are natural numbers?
Rectangle SS
The perimeter of a rectangle is 154 dm, and its diagonal is 62.36 dm. Find the dimensions of the rectangle.
Sphere slices
Calculate the volume and surface of a sphere if the radii of a parallel cut r₁=32 cm, r₂=47 cm, and its distance v=21 cm.
Sphere cuts
At what distance from the center does the sphere intersect with the radius R = 46 plane if the cut area and area of the main sphere circle are in ratio 2/5?
Heron backlaw
Calculate the unknown side in a triangle with sides 39 and 38 and area 438.6.
Equilateral triangle
Calculate the side of an equilateral triangle if its area is 886 mm².
Triangle
Calculate the triangle's heights ABC if the triangle's sides are a=26, b=81, and c=73.
Diamond
Find the side of the diamond if its area is S = 194 cm² and one diagonal u₂ = 44 cm.
Lead cube
Calculate the cube's edge made from lead, which weighs 14 kg. The density of lead is 11341 kg/m³.
Circle
How big is the area of a circle if its circumference is 51.2 cm?

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