what's the volume of a rectangular prism if it has a length of 20 inches and a width of 12 inches and a height of 6 inches​

1,440

Step-by-step explanation:

we know: volume = h · d · w

given: length = 20 inches,  width= 12 inches, height = 6 inches.

20 x 12 x 6 = 1,440

( multiply l x w x h to find the volume)

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

answer: can you give the

step-by-step explanation: