Constructing Triangles with Given Segments

Constructing Triangles with Given Segments

Assessment

Interactive Video

Mathematics, Science, Design

6th - 7th Grade

Hard

Created by

Patricia Brown

FREE Resource

This video tutorial demonstrates how to construct a triangle using three given line segments. It begins by marking the first vertex and drawing a base line longer than necessary. The compass is set to the length of one segment to create an arc that intersects the base, marking the second vertex. The process is repeated with the second segment to locate the third vertex using intersecting arcs. Finally, the remaining sides are drawn to complete the triangle, ensuring all sides are congruent to the original segments.

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9 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in constructing a triangle with three given line segments?

Mark a point for the first vertex

Measure the angles

Draw a circle

Draw the longest side

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you determine the length of the base of the triangle?

By setting the compass to the length of one side

By drawing a random line

By using a ruler

By estimating visually

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of locking the compass after setting its width?

To use it as a ruler

To prevent it from drawing circles

To make it easier to hold

To ensure it doesn't change while drawing

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the second vertex of the triangle determined?

By making an arc that intersects the base

By drawing a straight line

By guessing its position

By measuring with a protractor

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the next step after marking the second vertex?

Draw the third side

Set the compass to the second line segment's length

Erase the base

Measure the angles

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you find the location of the third vertex?

By using a ruler

By estimating visually

By making arcs from both the first and second vertices

By drawing a line from the second vertex

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of the intersection of the two arcs?

It is the center of the triangle

It is the endpoint of the base

It marks the midpoint of the triangle

It is the location of the third vertex

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should be done after locating the third vertex?

Measure the angles

Draw the remaining sides to complete the triangle

Erase the arcs

Draw a circle around the triangle

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final check to ensure the triangle is constructed correctly?

Check that the sides are congruent to the given segments

Ensure the triangle is equilateral

Measure the perimeter

Verify the angles are equal