# Planimetrics + triangle - practice problems

#### Number of problems found: 1463

- An isosceles 2

An isosceles triangular frame has a measure of 72 meters on its legs and 18 meters on its base. Find the perimeter of the frame. - Iso triangle

An isosceles triangle with a base of 8 cm. Its circumference is 28 cm. Calculate the height of the triangle. - The diagonals

The diagonals in the diamond ABCD are 6 cm and 8 cm long. What is the perimeter of this diamond? - 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? - 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. - Calculate 58953

Calculate the area of a circular line if the radius r = 80 cm and the central angle is α = 110 °? - Trapezoid

The rectangular trapezoid ABCD with right angle at the vertex A has sides a, b, c, d. Calculate the circumference and the area of the trapezoid if given: a = 25cm, c = 10cm, d = 8cm - Determine 57151

The land has the shape of an obtuse triangle with sides of 40m, 30, and 60m. Determine the minimum length of the mesh for fencing and the land area in ares. - Circumference 56291

Calculate the circumference of a circle circumscribed by a right triangle with squares 10 cm and 15 cm long. - Area of a triangle

Find the area of a triangle with a base of 7 mm and a height of 10 mm? - Circle inscribed

There is a triangle ABC and a circle inscribed in this triangle with radius 15. The point T is the point of contact of the inscribed circle with the side BC. What is the area of the triangle ABC if | BT | = 25 a | TC | = 26? - Diamond PQOR

In the diamond PQOR, the diagonal RQ is 4 cm long and the angle RPQ is 60°. What is the circumference of this diamond? - Circumference 47983

What is the area of an equilateral triangle with a circumference of 63 cm? - Calculate 46541

Calculate the perimeter and the area of a right triangle if a = 6 cm, b = 8 cm, c = 10 cm. - Find the

Find the third interior angle of the triangle ABC where: α = 48°, γ = 65°. - Perpendiculars 46081

Calculate the size of the hypotenuse in a triangle if its perpendiculars are 8 cm and 8.4 cm long. - The quadrilateral

The quadrilateral ABCD is composed of two right triangles ABD and BCD. For side lengths: |AD| = 3cm, | BC | = 12cm, | BD | = 5cm. How many square centimeters (area) does the quadrilateral ABCD have? The angles DAB and DBC are right. - Triangular land

Jana has a rectangular garden measuring 30 meters by 72 meters that she wants to split diagonally from corner to corner using a fence. How long does her fence need to be?

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