At 1am the temperature is 12f. If the temperature steadily decreases 2f per hour then the temperature at 8pm is

The triangle RST is not a right triangle.

Step-by-step explanation:

Given the triangle Δ RST with coordinates R(2,3), S(4,4), and T(5,0).

Now, the length of side RS = units.

The length of side ST = units and

The length of side TR = units

Therefore, the lengths of the sides of the triangle does not match the Pythagoras Theorem i.e. (Hypotenuse)² = (Height)² + (Base)².

Therefore, the triangle is not a right triangle. (Answer)