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Circumcenter Exploration

Explore the properties and construction of the circumcenter of a triangle, including its location relative to different types of triangles and its application in geometric problems.

Grade 12 Math GeometryCircumcenter
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Includes

2 Short AnswerMultiple ChoiceFill in the BlanksTrue / False

Standards

CCSS.MATH.CONTENT.HSG.CO.C.10CCSS.MATH.CONTENT.HSG.C.A.3

Topics

CircumcenterGeometryGrade 12TrianglesPerpendicular Bisectors
7 sections · Free to use · Printable
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Circumcenter Exploration

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Read each question carefully and provide thorough answers. Show all your work for construction problems.

1. Define the circumcenter of a triangle. What is its key property with respect to the vertices of the triangle?

2. For which type of triangle does the circumcenter lie outside the triangle?

a

Acute Triangle

b

Right Triangle

c

Obtuse Triangle

d

Equilateral Triangle

3. The circumcenter is the intersection of the     of the sides of a triangle.

4. The circumcenter is equidistant from the three   of the triangle.

5. Consider a triangle with vertices A(1, 2), B(7, 2), and C(4, 8). a) Plot the triangle on the coordinate plane below.

0246810246810

b) Find the equations of the perpendicular bisectors of sides AB and BC. Show your work.

c) Determine the coordinates of the circumcenter. Show your work.

d) What is the radius of the circumcircle for this triangle?

6. The circumcenter of a right triangle is always located at the midpoint of its hypotenuse.

T

True

F

False