Match each set of vertices with the type of triangle they form.
a(2,0), b(3, 2), c(5, 1)
obtuse scalene triangle
a(4,2), b(6,2), c(5, 3.73)
eee
isosceles right triangle
a(-5,2), b(-4,4), c(-2,2)
right triangle
a(-3, 1), b(-3, 4), "c(-1,1)
acute scalene triangle
a(-4, 2), b(-2, 4), c(-1,4)

its 4 because 2 times 2 is 4, if you double the number two you get four

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

30.5*10=350$

you have to multiply the number without the decimal point then add it later but if its tenn u must move the place value of the decimal point 1 to the right.