Which of these four sets of side lengths will form a right

I think it’s set 4 but I need to know why

set 4

Step-by-step explanation:

if u use the Pythagorean theorem for all these measurements, then you'll see:

set A:

(√2)²+(√7)²≠9²

2+7≠81

set B:

2² + (√5)²≠9²

4+5≠81

Set 3:

(√6)² + 2² ≠ 10²

6+4≠100

Set 4:

(√2)² + (√7)² = 3²

2+7=9

Hope this helps :)

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice