1 Click the button. 2 Use any tool in drawing to share how you completed/ and responded to the Day 3 Math Activity. There are 2 slides to respond to. How long will it take you to walk the Appalachian Trail? To measure the length of your stride, you’ll need two pens, a tape measure and a long hallway or sidewalk. Place one pen at the end of the hallway or sidewalk and stand with your feet together and heels against the pen. Now, walk 10 steps, taking normal strides. After the tenth step, bring your feet together again, and place the second pen behind your heels. Measure the distance between the pens, using the tape measure. Then divide by 10 to find your stride length. Ta-da! There are 63,360 inches in a mile. How many strides would it take you to walk a mile? 3 Check your work. 4 Click the green check to submit your work.