Respuesta :

ninjathan300

Answer:

There would be 300 steel rods in a staircase frame with 20 steps.

Step-by-step explanation:

For 1 step there would be 15 steel rods.

So all we have to do is multiply 15 by the 20 steps.

15 * 20 = 300

So the answer is 300 steel rods.

Hope this helps! :)

maria14886

Answer: It would be 300 steel rods cause you do 15 times 20 which is 300

Step-by-step explanation: I know cause the math was really easy