The length of one side of a triangle is 3 feet less than twice the length of its second side. The length of the third side is 2/3 of the sum of the lengths of the first two sides. Find the lengths of all three sides is the perimeter of the triangle is 6.5 feet

50- 250 is correct i did that one too

step-by-step explanation:

idk

step-by-step explanation:

answer is 12345678900987654321234567890987654321

step-by-step explanation:

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.