The side lengths of four triangles are given below. which of them is not a right triangle?

30 points.

7, 8, 9

3, 4, 5

10, 24, 26

6, 8, 10

THEOREM:

Pythagorean theorem:— In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides.

We will use pythagorean property to determine which is not a right angled triangle.

So, Correct choice - [A] 7, 8, 9.

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you