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## Inner side of Concave Quadrilateral Solution

STEP 0: Pre-Calculation Summary
Formula Used
side_d = sqrt(Side A^2+Diagonal^2-(2*Side A*Diagonal)*cos(Angle B))
Sd = sqrt(Sa^2+d^2-(2*Sa*d)*cos(∠B))
This formula uses 2 Functions, 3 Variables
Functions Used
cos - Trigonometric cosine function, cos(Angle)
sqrt - Squre root function, sqrt(Number)
Variables Used
Side A - Side A is an upright or sloping surface of a structure or object that is not the top or bottom and generally not the front or back. (Measured in Meter)
Diagonal - A diagonal is a straight line joining two opposite corners of a square, rectangle, or another straight-sided shape. (Measured in Meter)
Angle B - The angle B the space between two intersecting lines or surfaces at or close to the point where they meet. (Measured in Degree)
STEP 1: Convert Input(s) to Base Unit
Side A: 8 Meter --> 8 Meter No Conversion Required
Diagonal: 8 Meter --> 8 Meter No Conversion Required
Angle B: 45 Degree --> 0.785398163397301 Radian (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Sd = sqrt(Sa^2+d^2-(2*Sa*d)*cos(∠B)) --> sqrt(8^2+8^2-(2*8*8)*cos(0.785398163397301))
Evaluating ... ...
Sd = 6.12293491784035
STEP 3: Convert Result to Output's Unit
6.12293491784035 Meter --> No Conversion Required
6.12293491784035 Meter <-- Side D
(Calculation completed in 00.016 seconds)

## < 7 Concave Quadrilateral Calculators

area = sqrt(((Outer side a+Inner Diagonal+Inner side d)/2)*((Outer side a+Inner Diagonal+Inner side d)/(2-Outer side a))*((Outer side a+Inner Diagonal+Inner side d)/(2-Inner Diagonal))*((Outer side a+Inner Diagonal+Inner side d)/(2-Inner side d)))+ sqrt(((Outer side b+Inner Diagonal+Inner side c)/2)*((Side B+Diagonal+Side C)/(2-Side B))*((Outer side b+Inner Diagonal+Inner side c)/(2-Inner Diagonal))*((Outer side b+Inner Diagonal+Inner side c)/(2-Inner side c))) Go
diagonal = sqrt((Side A^2)+(Side B^2)-(2*Side A*Side B)*cos(Angle B)) Go
diagonal = sqrt((Side B^2)+(Side C^2)-(2*Side B*Side C)*cos(Angle C)) Go
side_d = sqrt(Side A^2+Diagonal^2-(2*Side A*Diagonal)*cos(Angle B)) Go
angle_a = arccos((Side A^2+Side D^2-Diagonal^2)/(2*Side A*Side D)) Go
angle = (2*pi)-Angle A-Angle B-Angle C Go
perimeter = Side A+Side B+Side C+Side D Go

### Inner side of Concave Quadrilateral Formula

side_d = sqrt(Side A^2+Diagonal^2-(2*Side A*Diagonal)*cos(Angle B))
Sd = sqrt(Sa^2+d^2-(2*Sa*d)*cos(∠B))

## What is a concave quadrilateral?

A quadrilateral is called a concave quadrilateral, if at least one line segment joining the vertices is not a part of the same region of the quadrilateral. That is, any line segment that joins two interior points goes outside the figure.

## How to Calculate Inner side of Concave Quadrilateral?

Inner side of Concave Quadrilateral calculator uses side_d = sqrt(Side A^2+Diagonal^2-(2*Side A*Diagonal)*cos(Angle B)) to calculate the Side D, Inner side of Concave Quadrilateral formula is defined as d = √ a² + f² - 2af * cos( β2 ) where a is outer side, f is diagonal and β2=β - β1 of concave quadrilateral. Side D and is denoted by Sd symbol.

How to calculate Inner side of Concave Quadrilateral using this online calculator? To use this online calculator for Inner side of Concave Quadrilateral, enter Side A (Sa), Diagonal (d) & Angle B (∠B) and hit the calculate button. Here is how the Inner side of Concave Quadrilateral calculation can be explained with given input values -> 6.122935 = sqrt(8^2+8^2-(2*8*8)*cos(0.785398163397301)).

### FAQ

What is Inner side of Concave Quadrilateral?
Inner side of Concave Quadrilateral formula is defined as d = √ a² + f² - 2af * cos( β2 ) where a is outer side, f is diagonal and β2=β - β1 of concave quadrilateral and is represented as Sd = sqrt(Sa^2+d^2-(2*Sa*d)*cos(∠B)) or side_d = sqrt(Side A^2+Diagonal^2-(2*Side A*Diagonal)*cos(Angle B)). Side A is an upright or sloping surface of a structure or object that is not the top or bottom and generally not the front or back, A diagonal is a straight line joining two opposite corners of a square, rectangle, or another straight-sided shape & The angle B the space between two intersecting lines or surfaces at or close to the point where they meet.
How to calculate Inner side of Concave Quadrilateral?
Inner side of Concave Quadrilateral formula is defined as d = √ a² + f² - 2af * cos( β2 ) where a is outer side, f is diagonal and β2=β - β1 of concave quadrilateral is calculated using side_d = sqrt(Side A^2+Diagonal^2-(2*Side A*Diagonal)*cos(Angle B)). To calculate Inner side of Concave Quadrilateral, you need Side A (Sa), Diagonal (d) & Angle B (∠B). With our tool, you need to enter the respective value for Side A, Diagonal & Angle B and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Side D?
In this formula, Side D uses Side A, Diagonal & Angle B. We can use 7 other way(s) to calculate the same, which is/are as follows -
• diagonal = sqrt((Side A^2)+(Side B^2)-(2*Side A*Side B)*cos(Angle B))
• diagonal = sqrt((Side B^2)+(Side C^2)-(2*Side B*Side C)*cos(Angle C))
• side_d = sqrt(Side A^2+Diagonal^2-(2*Side A*Diagonal)*cos(Angle B))
• angle_a = arccos((Side A^2+Side D^2-Diagonal^2)/(2*Side A*Side D))
• angle = (2*pi)-Angle A-Angle B-Angle C
• perimeter = Side A+Side B+Side C+Side D
• area = sqrt(((Outer side a+Inner Diagonal+Inner side d)/2)*((Outer side a+Inner Diagonal+Inner side d)/(2-Outer side a))*((Outer side a+Inner Diagonal+Inner side d)/(2-Inner Diagonal))*((Outer side a+Inner Diagonal+Inner side d)/(2-Inner side d)))+ sqrt(((Outer side b+Inner Diagonal+Inner side c)/2)*((Side B+Diagonal+Side C)/(2-Side B))*((Outer side b+Inner Diagonal+Inner side c)/(2-Inner Diagonal))*((Outer side b+Inner Diagonal+Inner side c)/(2-Inner side c))) Let Others Know