Quiz about Geometry Unit 3 Review

Question 1

A 60-foot flagpole casts a shadow that is 35 feet long. A nearby building casts a shadow 140 feet long. What is the height, to the nearest foot, of the building?

Accepted Answer

240 ft.

Answer

82 ft.

Answer

118 ft.

Answer

15 ft.

Question 2

In the diagram below, $$\overline{DB}$$ and $$\overline{CA}$$ intersect at $$E$$ ,

and $$\overline{DA}$$ $$\parallel$$ $$\overline{CB}$$ .

Which technique can be used to prove $$\Delta DAE\ $$ is similar to $$\Delta CBE$$ ?

Accepted Answer

AA $$\sim$$

Answer

SSS $$\sim$$

Answer

SAS $$\sim$$

Question 3

Which equation can be used to solve for x?

Accepted Answer

Question 4

In the accompanying diagram, $$\Delta ACB$$ is a right triangle,

$$\overline{CD}$$ is the altitude to hypotenuse $$\overline{AB}$$ ,

AD=18 centimeters, and DB=6 centimeters.

What is the length of CB?

Accepted Answer

12 centimeters

Answer

$$12\sqrt[]{3}$$ centimeters

Answer

$$\sqrt[]{432}$$ centimeters

Answer

6 centimeters

Question 5

In the diagram, the length of the legs $$\overline{AC}$$ and $$\overline{BC}$$ of the right triangle ABC are 9 centimeters and 12 centimeters respectively.

Altitude $$\overline{CD}$$ is drawn to the hypotenuse of triangle ABC.

What is the length of BD?

Accepted Answer

5.4 centimeters

Answer

6.0 centimeters

Answer

5.0 centimeters

Answer

9.6 centimeters

Geometry Unit 3 Review

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