Unit 1, Lesson 10
Bases and Heights of Triangles
Grade 6
Practice
Problem 1
For each triangle, a base is labeled \(b\). Draw a line segment that shows its corresponding height. Use an index card to help you draw a straight line.
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Problem 2
Select all triangles that have an area of 8 square units. Explain how you know.
5 triangles on grid labeled A, B, C, D, E. A base = 4, height = 4. B base = 4, height = 4. C base = 3, height = 5. D base = 4, height = 4. E base = 8, height = 2.
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Problem 3
Find the area of the triangle. Show your reasoning.
If you get stuck, carefully consider which side of the triangle to use as the base.
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Problem 4
Can Side \(d\) be the base for this triangle? If so, which length would be the corresponding height? If not, explain why not.
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Problem 5
Find the area of this shape. Show your reasoning.
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Problem 6
On the grid, sketch two different parallelograms that have equal area. Label a base and height of each and explain how you know that the areas are the same.
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