Problems of the area of a triangle

Number of problems found: 508

  • Regular quadrilateral pyramid
    Find the surface area of a regular quadrilateral pyramid if for its volume V and body height v and the base edge a applies: V = 2.8 m ^ 3, v = 2.1 m
  • Dodecagon
    Find the area of a regular dodecagon (n=12) if the radius of the circumscribed circle is 5 cm.
  • 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.
  • Divide an isosceles triangle
    How to divide an isosceles triangle into two parts with equal contents perpendicular to the axis of symmetry (into a trapezoid and a triangle)?
  • Equilateral triangle
    Find the area of an equilateral triangle with a side of 15 cm.
  • Axial section
    Calculate the volume and surface of a cone whose axial section is an equilateral triangle with side length a = 18cm.
  • Calculate
    Calculate the area of triangle ABC, if given by alpha = 49°, beta = 31°, and the height on the c side is 9cm.
  • Angle of diagonals
    Calculate the perimeter and the area of a rectangle if its diagonal is 14 cm and the diagonals form an angle of 130°.
  • A triangle 2
    A triangle has a base of 2 inches and a height of 2 3/4 inches. What is the area of the triangle?
  • A Cartesian framework
    1. In a Cartesian framework, the functions f and g we know that: the function (f) is defined by f (x) = 2x ^ 2, the function (g) is defined by g (x) = x + 3, the point (O) is the origin of the reference, point (C) is the point of intersection of the graph
  • The tetrahedron
    Calculate the surface area and volume of a regular tetrahedron 4.9 cm high, the base edge has a length of 6 cm.
  • A isosceles
    A isosceles triangle has an area of 168 cm2 and it's added height and base is 370 cm. What are the measurements of it's height and base?
  • A rhombus 2
    A rhombus have sides of 170 meters and diagonal of 300 meters. What is the area of the rhombus?
  • Side and diagonal
    Find the circumference and the area of the rectangle if given: side a = 8 cm diagonal u = 10 cm.
  • Martians
    A sphere-shaped spaceship with a diameter of 6 m landed in the meadow. In order not to attract attention, the Martians covered it with a roof in the shape of a regular cone. How high will this roof be so that the consumption of roofing is minimal?
  • The roof
    The roof of the tower has the shape of a regular quadrangular pyramid, the base edge of which is 11 m long and the side wall of the animal with the base an angle of 57°. Calculate how much roofing we need to cover the entire roof, if we count on 15% waste
  • Base diagonal
    In a regular 4-sided pyramid, the side edge forms an angle of 55° with the base's diagonal. The length of the side edge is eight meters. Calculate the surface area and volume of the pyramid.
  • Side edges
    The regular 4-sided pyramid has a body height of 2 dm, and the opposite side edges form an angle of 70°. Calculate the surface area and volume of the pyramid.
  • Surface and volume - cube
    Find the surface and volume of a cube whose wall diagonal is 5 cm long.
  • Metal washers
    Metal washers with a diameter of 80 mm are cut from a strip of steel sheet with a width of 10 cm and a length of 2 m. Calculate the percentage of material waste if no material is lost when two adjacent circles meet.

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See also our trigonometric triangle calculator. Area - math problems. Triangle Problems.