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Decagon

Solves for the side, perimeter, and area of a decagon.

Equilateral Triangle

Given a side (a), this calculates the following items of the equilateral triangle:

* Perimeter (P)

* Semi-Perimeter (s)

* Area (A)

* altitudes (h_{a},h_{b},h_{c})

* medians (m_{a},m_{b},m_{c})

* angle bisectors (t_{a},t_{b},t_{c})

* Circumscribed Circle Radius (R)

* Inscribed Circle Radius (r)

* Perimeter (P)

* Semi-Perimeter (s)

* Area (A)

* altitudes (h

* medians (m

* angle bisectors (t

* Circumscribed Circle Radius (R)

* Inscribed Circle Radius (r)

Heptagon

Solves for side length, perimeter, and area of a heptagon.

Hexagon

This calculator solves for side length (s), Area (A), and Perimeter (P) of a hexagon given one of the 3 entries.

Isosceles Triangle

Given a long side (a) and a short side (b), this determines the following items of the isosceles triangle:

* Area (A)

* Semi-Perimeter (s)

* Altitude a (ha)

* Altitude b (hb)

* Altitude c (hc)

* Area (A)

* Semi-Perimeter (s)

* Altitude a (ha)

* Altitude b (hb)

* Altitude c (hc)

Kites

This calculates perimeter and/or area of a kite given certain inputs such as short and long side, short and long diagonal, or angle between short and long side

Nonagon

Calculates the side, perimeter, and area of a nonagon

Octagon

Calculate side, area, and perimeter of an octagon based on inputs

Pentagons

Given a side length and an apothem, this calculates the perimeter and area of the pentagon.

Polygons

Using various input scenarios of a polygon such as side length, number of sides, apothem, and radius, this calculator determines Perimeter or a polygon and Area of the polygon.
This also determines interior angles of a polygon and diagonals of a polygon as well as the total number of 1 vertex diagonals.

Quadrilateral

Given 4 points entered, this determines the area using Brahmaguptas Formula and perimeter of the quadrilateral formed by the points as well as checking to see if the quadrilateral (quadrangle) is a parallelogram.

Rectangle Word Problem

Solves word problems based on area or perimeter and variable side lengths

Rectangles and Parallelograms

Solve for Area, Perimeter, length, and width of a rectangle or parallelogram and also calculates the diagonal length as well as the circumradius and inradius.

Rhombus

Given inputs of a rhombus, this calculates the following:

Perimeter of a Rhombus

Area of a Rhombus

Side of a Rhombus

Perimeter of a Rhombus

Area of a Rhombus

Side of a Rhombus

Squares

Solve for Area of a square, Perimeter of a square, side of a square, diagonal of a square.

Trapezoids

This calculator determines the following items for a trapezoid based on given inputs:

* Area of trapezoid

* Perimeter of a Trapezoid

* Area of trapezoid

* Perimeter of a Trapezoid

The perimeter of a rectangle is 400 meters. The length is 15 meters less than 4 times the width. Fin

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A farmer has 165 feet of fencing material in which to enclose a rectangular grazing area. He wants t

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Triangle with perimeter

The perpendicular height of a right-angled triangle is 70 mm longer than the base. Find the perimete

The length of a rectangular building is 6 feet less than 3 times the width. The perimeter is 120 fee

The perimeter of a rectangular bakery is 204 feet. It is 66 feet long. How wide is it?

the length of a rectangular map is 15 inches and the perimeter is 50 inches. Find the width

A rectangular field is twice as long as it is wide. If the perimeter is 360 what are the dimensions?