Expression of a variable from the formula - math word problems - page 138 of 139
Number of problems found: 2762
- Arc and segment
Calculate the length of circular arc l, the area of the circular arc S1, and the area of circular segment S2. The circle's radius is 88, and the corresponding angle is (4)/(7) π.
- 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?
- Angles
The triangle is one outer angle 158°54' and one internal angle 148°. Calculate the other interior angles of a triangle.
- Tree trunk
Calculate the average tree trunk with a circumference of 192 cm.
- Heron backlaw
Calculate the unknown side in a triangle with sides 24 and 40 and area 299.6.
- Circle
How big is the area of a circle if its circumference is 51.2 cm?
- The cap
A rotating cone shapes a jester hat. Calculate how much paper is needed for the cap 53 cm high when the head circumference is 45 cm.
- Median
The median of the triangle NOP is away from vertex P 95 cm. Calculate the length of the median, which start at P.
- Demographics
The population grew in the city in 10 years from 30000 to 34000. What is the average annual percentage increase in population?
- Right triangle
The legs of the right triangle are in the ratio a:b = 2:8. The hypotenuse has a length of 87 cm. Calculate the perimeter and area of the triangle.
- Sphere A2V
The surface of the sphere is 241 mm². What is its volume?
- Sphere growth
How many times does a volume of the sphere rise if priemer rises 10×?
- Floating barrel
The barrel (cylinder shape) floats on water, the top of the barrel is 8 dm above water, and the width of the surfaced barrel part is 23 dm. The barrel length is 24 dm. Calculate the volume of the barrel.
- Garden
Trapezoid garden has parallel sides 19 m and 24 m. Its area is 193.5 square meters. What is the width of the garden?
- Shape
The plane shape has a maximum area 677 mm². Calculate its perimeter if the perimeter is the smallest possible.
- Rhombus problem
The perimeter of the rhombus is 268 m, and its area is 2278 m². Calculate the height of the rhombus.
- Cube wall
The surface of the first cube wall is 64 m². The second cube area is 40% of the surface of the first cube. Find the length of the edge of the second cube (x).
- Playground
The rectangular playground is fenced with 38 m long netting. Its width is 7 m. Calculate its length.
- Square diagonal
Calculate the length of the square diagonal if the perimeter is 172 cm.
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