
Area of a Triangle Formula: inradius & semiperimeter
Apr 8, 2006 · How would you show a triangle's area is equal to the product of its inradius and its semiperimeter?
perimeter of a triangle | Free Math Help Forum
Dec 31, 2024 · What is the perimeter of the triangle?What a frustrating thread! Did anyone else notice the red arcs which indicate congruent angles? That gives us an isosceles triangle. Thus …
Heron's Formula on Excel - Free Math Help Forum
Aug 2, 2007 · Our task is to find a the smallest triangle (by perimeter) that fits the following criteria: 1) Scalene 2) Isn't right angled 3) All 3 Sides are integers 4) Its area is an integer I …
Perimeter of Isoceles Triangle without Base - Free Math Help Forum
Feb 10, 2010 · The right-triangle definition of the cosine function is the ratio of an angle's adjacent side to the hypotenuse. I was thinking that you're learning trigonometry because you posted …
Perimeter of a triangle with rounded corners - Free Math Help …
Jun 28, 2023 · Hello, I'm trying to build an equation that I can use to calculate the perimeter of a triangle with rounded corners. I'm not looking for a specific answer but an equation so I can …
Isosceles Triangles - Free Math Help
Isosceles triangles have two sides with the same length, and one side that differs. Other types of triangles are scalene and equilateral. Learn about the characteristics of isosceles triangles …
HELP FOR this | Free Math Help Forum
Nov 30, 2013 · 1. The sides of a triangle are 12 in, 16 in, and 21 in. Find the area 2. Determine the interior angles in a triangle whose sides are 16 cm, 24 cm, and 12 cm, long. 3. The …
Secants and Tangents - Free Math Help Forum
Oct 25, 2005 · B is 34 mm from the center of circle O, which has a radius 16 mm. Segment BP and segment BR are tangent segments. Line AC is tangent to circle O at point Q. Find the …
Triangle Word Problem - Free Math Help Forum
Sep 3, 2013 · Hi, I'm struggling to just get started on this one word problem: One leg of a right triangle is 20 cm. Let h be the length of the hypotenuse and let p be the perimeter of the …
Area of isosceles triangle with rounded corners :S
Apr 25, 2009 · Comparing the regular triangle with the rounded one, the area of the rounded triangle will be the area of the regular triangle, less the areas of the three corners (the triangles …