Math Homework Question?
A triangle has two sides A,B,C. If B is twice as long as A, and A is three units less than C, for what lengths of A is the perimeter of the Triangle no more than 30 units?
- GeronimoLv 79 years agoFavorite Answer
Sides are usually in lower case letters and the angles opposite the sides
are labeled the same except in capital letters.
b = 2a ... EQUATION 1
a = c – 3
a + 3 = c ... EQUATION 2
Perimeter = a + b + c ≤ 30 ... substitute for "b" and "c" using EQ.1 & 2
a + (2a) + (a + 3) ≤ 30
4a ≤ 27
a ≤ 6.75 units
- 9 years ago
a+b+c=(less than 30 units LOL)
a equals to or is less than 6 (so yeah its gonna be a<6, but with the line at the bottom of the less than)
Not too sure but i think im right :DSource(s): solved it :D