# Planimetrics - practice problems - page 2 of 138

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: 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

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? - Renovation

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 °?

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