Illustrative Mathematics - Geometry - Unit 3 - Lesson 13 - Formative Library | Library

In right triangle ABC, altitude CD is drawn to its hypotenuse. Select all triangles which must be similar to triangle ABC.

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In right triangle ABC, altitude CD with length h is drawn to its hypotenuse. We also know AD=12 and DB=3. What is the value of h?

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In triangle ABC (not a right triangle), altitude CD is drawn to side AB. The length of AB is c. Which of the following statements must be true?

The measure of angle ACB is the same measure as angle B.

b^{2}=c^{2}+a^{2}

Triangle ADC is similar to triangle ACB.

The area of triangle ABC equals \frac{1}{2}h*c.

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Quadrilateral ABCD is similar to quadrilateral A'B'C'D'. Write 2 equations that could be used to solve for missing lengths.

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Lines BC and DE are both vertical. What is the length of AD?

4.5

5

7.5

10

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Triangle DEF is formed by connecting the midpoints of the sides of triangle ABC. 
Select all true statements.

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This lesson is from Illustrative Mathematics. Geometry, Unit 3, Lesson 13. Internet. Available from https://curriculum.illustrativemathematics.org/HS/teachers/2/3/13/index.html ; accessed 29/July/2021.

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