Equilateral Triangle side = 13 ·

02 Jul 2024, 00:00

Equilateral Triangle side = 13 Image to Crop

Enter Side (a)

Given an equilateral triangle with side (a) equal to 13

Calculate the other relevant items in this triangle

Calculate Perimeter:

P = 3a

P = 3 x 13

P = 39

Calculate Semiperimeter s:

s =	P
	2

s =	39
	2

s = 19.5

Calculate Area (A):

A =	a2√3
	4

A =	132√3
	4

A =	169√3
	4

A =	292.71658647914
	4

A = 73.179146619785

Calculate Bisector

ha-ma-ta =	a√3
	2

ha-ma-ta =	22.516660498395
	2

ha-ma-ta = 11.258330249198

Calc. Circumscribed Circle Radius

R =	a√3
	3

R =	22.516660498395
	3

R = 7.5055534994651

Calculate Inscribed Circle Radius

r =	a√3
	6

r =	22.516660498395
	6

r = 3.7527767497326

P = 39
s = 19.5
A = 13

You have 1 free calculations remaining

What is the Answer?

P = 39
s = 19.5
A = 13

How does the Equilateral Triangle Calculator work?

Free Equilateral Triangle Calculator - Given a side (a), this calculates the following items of the equilateral triangle:
* Perimeter (P)
* Semi-Perimeter (s)
* Area (A)
* altitudes (ha,hb,hc)
* medians (ma,mb,mc)
* angle bisectors (ta,tb,tc)
* Circumscribed Circle Radius (R)
* Inscribed Circle Radius (r)
This calculator has 1 input.

What 3 formulas are used for the Equilateral Triangle Calculator?

P = 3a
s = ½P
A = a22√3/4

For more math formulas, check out our Formula Dossier

What 6 concepts are covered in the Equilateral Triangle Calculator?

altitudesegment from the vertex of a triangle ot the other side of the triangleareaNumber of square units covering the shapeequilateral triangleA triangle with 3 equal sidesperimeterThe distance around a shape or objectradiusDistance from the center of a circle to the edge
C/2πtrianglea flat geometric figure that has three sides and three angles

Equilateral Triangle side = 13

Given an equilateral triangle with side (a) equal to 13 Calculate the other relevant items in this triangle P = 3a P = 3 x 13 P = 39 s = 19.5 A = 73.179146619785 ha-ma-ta = 11.258330249198 R = 7.5055534994651