Illustrative Mathematics - Geometry - Unit 4 - Lesson 3 - Formative Library | Library

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1.

Select all statements that are true about equilateral triangle ABC.

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G.CO.3

8.G.7

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2.

Find the length of each leg.

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G.CO.3

8.G.7

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3.

An equilateral triangle has a side length of 10 units. What is its area?

G.SRT.6

G.CO.3

8.G.7

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4.

Find the lengths of the legs.

G.SRT.6

G.CO.3

8.G.7

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5.

A square has side length 3 units. What is the length of the diagonal?

3 units

\frac{3}{\sqrt{2}} units

3\sqrt{2} units

6 units

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G.CO.3

8.G.7

G.SRT.5

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6.

A step has a height of 5 inches. A ramp starts 4 feet away from the base of the step, making a 5.9o angle with the ground. 

What can you say about the angle the ramp would make with the ground if the ramp starts farther away from the step?

The angle would decrease.

The angle would remain the same.

The angle would increase.

We cannot determine anything about the angle.

G.SRT.6

G.CO.3

8.G.7

G.SRT.5

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7.

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8.

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9.

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G.SRT.6

G.CO.3

8.G.7

G.SRT.5

This lesson is from Illustrative Mathematics. Geometry, Unit 4, Lesson 3. Internet. Available from https://curriculum.illustrativemathematics.org/HS/teachers/2/4/3/index.html ; accessed 29/July/2021.

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