Understanding Regular Triangles

Understanding Regular Triangles

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Practice Problem

Hard

Created by

Jennifer Brown

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a defining characteristic of a regular triangle?

It has one right angle.

All sides and angles are congruent.

All sides are different lengths.

It has two equal sides.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of the apothem in a regular polygon?

It forms a 90-degree angle with a side.

It bisects the central angle.

It is equal to the radius.

It connects two vertices.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the central angle of a regular triangle calculated?

180 degrees divided by the number of sides.

360 degrees divided by the number of sides.

The sum of all interior angles.

The difference between two interior angles.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a 30-60-90 triangle, what is the relationship between the sides?

All sides are equal.

The side opposite 90 degrees is twice the side opposite 30 degrees.

The side opposite 60 degrees is twice the side opposite 30 degrees.

The side opposite 30 degrees is twice the side opposite 60 degrees.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a regular triangle has a perimeter of 30 inches, what is the length of each side?

5 inches

20 inches

10 inches

15 inches

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Given a regular triangle with a perimeter of 30 inches, what is the apothem length?

10 inches

7.5 inches

5 inches

2.9 inches

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For a regular triangle with a perimeter of 30 inches, what is the calculated area?

60 square inches

50 square inches

43.5 square inches

30 square inches

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