Making geometric calculations can be difficult. Luckily, our old friend the coordinate plane can help! By combining coordinates and geometry, new, oftentimes more elegant solutions to otherwise difficult problems become apparent. The coordinate plane and coordinate geometry are useful tools because they allow you to use measurements you know - individual units on the coordinate plane - and the information you know from geometry and algebra to find measurements and create proofs. Fiveable is here to give you free math support and show you how to use the coordinate plane in your geometry problems. You got this!