Unit 4 Lesson 1-4 Practice

Find the missing side of triangle ABC

Find the missing side of triangle DEF

A square has a diagonal 6 in. What is the area of the square?

Select all statements that are true about equilateral triangle ABC.

• Angles B and C are 60 degrees

• $x=3\sqrt{3}$

• $x=6\sqrt{3}$

• Triangle ABD is congruent to triangle ACD

• ED and CD are both 3 units long

Find the length of AB

Find the length of CB (round to the tenths place)

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

A step has a height of 5 inches. A ramp starts 4 feet away from the base of the step, making a 5.9 degree angle with the ground. What can you say about the angle the ramp would make with the ground if the ramp starts further 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

Triangle ABC is equilateral. What is the measure of angle B?

What is the length of the square's side?

• 3 units

• $\frac{6}{\sqrt{2}}$ units

• $6\sqrt{2}$ units

• 12 units