Or download our app "Guided Lessons by Education.com" on your device's app store.
Can your child find the area of each triangle using the clues provided? It's pretty tricky; he'll need to find the area of a bunch of smaller shapes within the larger triangle, and then add them together. His comfort with geometry and awareness of area will increase with practice!
If he enjoys this worksheet, make sure to check out the rest of the Geometry Detective series.