is that upside down?
Answer:
i love math
Step-by-step explanation:
Second option is the correct answer.
x-17.5
angles in a triangle add to 180
3x+8+(2x-3)+5x = 180
simplify(collect like terms):
10x + 5 = 180
solve:
10x = 175
x=17.5
<em>48 ft</em>
<em>A = 144ft² = l²</em>
<em>144 = l²</em>
<em>l = √144</em>
<em>l = 12 ft</em>
<em>P = 4l</em>
<em>= 4×12ft</em>
<em>= 48 ft</em>
