A triangular pyramid and its net are shown. Rain uses Calculations below to conclude that the surface area of a triangular pyramid is 238.5 sq inches. Is rain correct? Use the drop down menus to explain your reasoning. WILL GIVE BRAINIEST!!

omg what happend to your question? if you could edit this question i can

step-by-step explanation:

entering that problem on the tube might get you an answer

$649.60

step-by-step explanation:

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0