Planimetrics - practice problems - page 2 of 138Study 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: 2745
- A rhombus 3
A rhombus has a side length of 6 centimeters and a height of 2 centimeters. What is the area of the rhombus, in centimeters square?
- The perimeter 8
The perimeter of a rectangle is 40cm. If its width measures 5cm, what is its area?
Mimie wants to put a lace around her square frame each side of the square measures 3 feet. What is the total length of the lace that she will use?
- O'clock 66554
What is the angle of the hour and minute hands on the clock of the old tower if it is exactly eight o'clock?
- Isosceles 64774
The figure shows an isosceles trapezoid CDEF. The size of the angle α is 73 degrees. Calculate the magnitude of the angle β in degrees.
- Rectangular 64274
We needed 82 m of wire mesh to fence the rectangular garden. The width of the garden is 16m. What is its area?
- Iso triangle
An isosceles triangle with a base of 8 cm. Its circumference is 28 cm. Calculate the height of the triangle.
- Circumference 61704
Calculate the area of a circle if its circumference is 21.98 dm. Express the result in square decimetres.
- Circumference 61654
The diamond has an area of 21.6 cm square. Its height is 4 cm. What is the circumference of the diamond?
- The diagonals
The diagonals in the diamond ABCD are 6 cm and 8 cm long. What is the perimeter of this diamond?
Five doors with a width of 80 cm and a height of 2 m need to be sanded and wallpapered on both sides. One roll of wallpaper with wood decor measuring 80*1000cm costs CZK 66. How many roles will we need for the renovation?
- Coat of arms
The class created its coat of arms, which had a shape composed of an isosceles trapezoid ABCD (shorter base is a = 4.5 cm long, longer 2a = 9 cm, trapezoid height 6 cm) and a semicircle with center S and diameter AB. Three identical isosceles triangles fo
- Calculate 60423
In a right triangle RST with a right angle at the vertex T, we know the lengths of two sides: s = 7.8 cm and t = 13 cm; calculate the third party r.
- How long
How long is the diagonal of the square with side a = 50mm?
- The formula
The formula for the area of a circle is (Pi x r x r) where r = measure of the radius and Pi = 3.14. What is the area of a circle whose radius measures 1 cm?
- A triangle 3
A triangle has base 5 5/6 feet and height 7 2/5 feet. Find the area of the triangle as a mixed number.
- Rectangular field 4
Find the perimeter of a rectangular field whose length measures 5.20 m and its width measures 3.4 m. (Use the formula: Perimeter= 2L+2W)
- Convex angle
There is a circle k (S; r) and a point A, which lies on this circle. There is also a point B on the circumference, for which it is true that in one direction it is five times further from the point A than in the opposite direction (around the circumferenc
- Determine 58963
The field has the shape of a circle. If he wants to run 800m, Honza has to go around the field 2.5 times. Determine the diameter of the pitch for the whole meter
- Calculate 58953
Calculate the area of a circular line if the radius r = 80 cm and the central angle is α = 110 °?