Circle - practice for 13 year olds - page 14 of 29
Number of problems found: 563
- Clock dial angles
The triangle that connects on the dial: a) 2,7,9 b) 3,6,10 Calculate the size of the interior angles. - Sphere cut area
We cut a sphere with a diameter of 10 dm into two equal parts. Calculate the area of the cut. - Venus volume surface
Calculate the volume and surface of the planet Venus if its circumference is 12,000 km. - Cone base
Calculate the circumference of the cone base; round the result to millimeters. If you know: radius 24 mm and height 46 mm. - Cylinder and its circumference
The height of a cylinder is four times its circumference, c. What is the volume of the cylinder in terms of its circumference c? - Prism bar diameter
If we want to make a prism with a wooden base with a 5 cm side of a wooden bar, what is the bar's smallest diameter? - Circumscribing
Find the radius of the circumscribed circle to the right triangle with legs 6 cm and 3 cm. - Beam diameter
What diameter must the trunk of a tree have to carve a beam with a square cross-section of 20 cm on it? - Circumscribed iso triangle
Construct an isosceles triangle if a given circle circumscribed with a radius r = 2.6 cm is given. - Right triangle
Draw a right triangle ABC if |AB| = 5 cm |BC| = 3 cm, |AC| = 4 cm. Draw Thales circle above the hypotenuse of the triangle ABC. - Semicircle
The semicircle with center S and the diameter AB is constructed equilateral triangle SBC. What is the magnitude of the angle ∠SAC? - OK circle
The right triangle has hypotenuse long 33 and one leg long 17. Calculate the radius (circumradius) of the circle described. - The cylinder 2 Find the volume and the lateral area of a cylinder with a height of 12 inches and a base radius of 4 inches.
- Triangle circle circumference
Calculate the perimeter of a circle circumscribed by a right triangle with squares 10 cm and 15 cm long. - Square circles
Calculate the length of the described and inscribed circle to the square ABCD with a side of 5 cm. - Square and circles
A square with side 68 km has a circumscribed circle and an inscribed circle. Determine the radii of both circles. - A pipe
A radius of a cylindrical pipe is 2 ft. If the pipe is 17 ft long, what is its volume? - Cylinder surface
The surface of the cylinder with a base diameter of 20 cm and a height of 0.3 m is approximate. - Triangle circle radius
Calculate the radius of the circle circumscribed about a right triangle whose legs are 10 cm and 24 cm long. - Circle area Calculate the area of the circle, which is described by a square with a side length of 7.5 cm.
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