The two triangles below are similar. Homework Help ✎
Find x. Show your strategy.
What is the scale factor (
Find the area of each triangle.
Try finding the scale factor between the two corresponding sides that are given and solve for x.
Another way to solve for x is to create a proportion.
One possible proportion is shown below.
x = 6 cm
Use the formula for area of a triangle:
What is the scale factor between the larger triangle and the smaller triangle? Find the ratio between corresponding sides.
Scale factor matches proportion.