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Home > GC > Chapter 5 > Lesson 5.3.5 > Problem 5-122

5-122.

Find the area and perimeter of below. Give approximate (decimal) answers, not exact answers. Homework Help ✎
triangle

Separate into two separate triangles by dropping the height from vertex .
Label the new point , creating and .

Both of the triangles that have been created are special right triangles, because the height creates two right triangles: a triangle and a triangle.

Refer to the Math Notes box below to find the lengths of the unknown sides.
Then use this information to find the area and perimeter of the original triangle.