Saturday

December 20, 2014

December 20, 2014

Posted by **Monday Godwin** on Friday, April 5, 2013 at 7:18am.

- Government senior college ikoyi -
**Knights**, Friday, April 5, 2013 at 7:23amBasically the inradius of the equilateral triangle. The formula for that is

inradius * semiperimeter (half the perimeter) = area

We know that the formula for calculating the area of a equilateral triangle is s^2 sqrt 3 /4 so we get 100sqrt3 as the area of the equilateral triangle.

Then, inradius * semiperimeter = 100sqrt 3

So, the semiperimeter is equal to half the perimeter. Therefore, 20+20+20 / 2 = 30.

The formula is now inradius * 30 = 100sqrt3

So, the inradius is 100sqrt3 / 30 =

10sqrt3/3

- olomu senior community secondary school Ajah -
**Lawrence**, Saturday, March 29, 2014 at 8:28pmthe Angel is /ABC/ inscribed in a circle center O an M radius =20cm, /AM/=10cm /AO/=20cm than /OM/2=\AO/2- /AM/2 which equal to /OM/2=400-100 , /OM/=√300 /OM/=17.33

**Answer this Question**

**Related Questions**

geometry - an equilateral triangle of side 20cm is inscribed in a circle....

geometry - Theres a circle with an equilateral triangle in the middle. The ...

math - An equilateral triangle is inscribed in a circle. The radius of the ...

geometry - An Equilateral triangle (ABC) is inscribed inside a circle. The side ...

Math - An equilateral triangle is inscribed in a circle. Each side of the ...

geo - a graphic artist is using a coordinate plane to design a company logo. the...

MATH - Given a circle with an inscribed equilateral triangle with each side of ...

geometry - Open that link please please help me with my assignments 1. in the ...

Math: PreCal: Triangles - An isosceles triangle is inscribed in a circle. The ...

geometry - A triangle is inscribed in a circle. One side of the triagle has ...