Adjust the colors to reduce glare and give your eyes a break. Use one of the services below to sign in to PBS: You've just tried to add this video to My List. But first, we need you to sign in to ...

Use one of the services below to sign in to PBS: You've just tried to add this video to My List. But first, we need you to sign in to PBS using one of the services below. You've just tried to add ...

Perimeter is the distance around the outside of a shape. Farmer John's Pet Farm is getting new fencing and turf for each of the animal enclosures. Have a look at the picture and work out the ...

Perimeter \(= 2 + 2 + 3 + 3 + 5 + 5 = 20~cm\) In some cases you’ll need to calculate the 'missing' lengths, eg \(x\) and \(y\) in the question below. a) The length of the play area is \(20~m ...