sheep(noun) woolly usually horned ruminant mammal related to the goat. sheep(noun) a timid defenseless simpleton who is readily preyed upon. sheep(noun) a docile and vulnerable person who would rather follow than make an independent decision.
The incenter is the one point in the triangle whose distances to the sides are equal. (See picture) 1  If the triangle is obtuse, such as the one on pictured below on the left, then the incenter is located in the triangle's interior.  If the triangle is acute, then the incenter is also located in the triangle's interior.
In order to find the perimeter, you must find the length of the left side. After some deduction \displaystyle (19ft -13ft), you can find that the base of the triangle is 6 ft. Then using the Pythagorean Theorem, or 3-4-5 right triangles, you can find that the height of the triangle and rectangle is 8 ft.