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Unit 1 - Lesson 9 cloned 1/16/2022

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Last updated about 4 years ago
8 questions
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Question 1
1.

Question 2
2.

For each triangle, a base and its corresponding height are labeled.

Find the area of each triangle.

Question 3
3.

For each triangle, a base and its corresponding height are labeled.
How is the area related to the base and its corresponding height?

Question 4
4.

Draggable itemarrow_right_altCorresponding Item
arrow_right_alt
arrow_right_alt
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Question 5
5.

Find the area of the shaded triangle. Enter your answer in square units.

Question 6
6.

Question 7
7.

Question 8
8.

Find the exact area of the octagon. Enter your answer in square units.

Source: Open Up Resouces (Download for free at openupresources.org.)
Select all drawings in which a corresponding height h for a given base b is correctly identified.

A
B
C
D
E
F
Here is a right triangle. Match a corresponding height for each base.
Side f
Segment g
Side d
Side f
Side e
Side e
Andre drew a line connecting two opposite corners of a parallelogram. Select all true statements about the triangles created by the line Andre drew.
Each triangle has two sides that are 3 units long.
The two triangles have the same area as each other.
Each triangle has a side that is the same length as the diagonal line.
When one triangle is placed on top of the other and their sides are aligned, we will see that one triangle is larger than the other.
Each triangle has one side that is 3 units long.
While estimating the area of the octagon, Lin reasoned that it must be less than 100 square inches. Is this true?

True
False