A triangle has side lengths of 13 cm and 6 cm. Which could be the value of the third side, 21 cm or 17 cm?

You are assembling pieces of an iron gate to complete a fence. the finished gate will look like the one below. in order to assemble the gate it is important to under how the pieces are related. part 1: how are pies 1 and 2 in the archway related? part 2: how are the rectangular sections 5 and 6 in the center of the gate related to each other?

How do you find the circumfrance of a circle?

Which of the following is the result of expanding the series