Inradius, Semiperimeter, and Area
Read this topicExplanations 3
- Inradius, semi-perimeter, and area The inradius of a triangle is formed by first dividing each of the three angles in half by a line (refer to dotted lines in the below image). …
By Michael Li, Joshua Siktar
- Finding Area with the Inradius Vocabulary There are a few terms we need to cover before we can dive in. Semi-Perimeter: One half of the perimeter, s=a+b+c2s=\frac{a+b+c}{2}s=2a+…
By Jonathan Heller, Alex Federspiel, Caroline K
- (Video) Circumradius and Inradius of Triangle by Lecture Videos for Entrance Exams This video by Lecture Videos for Entrance Exams covers the circumradius and inradius of a circ…
By Jonathan Heller, Alex Federspiel
Problems 5
- If the inradius of triangle ABCABCABC is 444 cm and the perimeter 101010 cm, what is the area of triangle ABC?ABC?ABC?
- For this to be true, what should be the "diameter" of a regular pentagon?
- A triangle has three sides of lengths A,B,A, B,A,B, and CCC. The sum of the lengths of the two shortest sides is 161616, and the triangle's semiperimeter is 141414. What is the …
- Two sides of a triangle have lengths 444 and 14.14.14. What is the range of possible values of the semiperimeter of the triangle?
- If a triangle has side lengths 5,6,5, 6,5,6, and 7,7,7, find the area of the triangle.