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9.03 Inequalities in one triangle

Interactive practice questions

Consider the triangle in the figure:

A triangle with all its angles and sides labeled. The side measuring 13 units is opposite of angle measuring $36^\circ$36°. The side measuring 17 units is opposite of the angle measuring $47^\circ$47°. The side measuring 20 units is opposite of the angle measuring $97^\circ$97°.
a

What is the sum of the interior angles in the triangle?

$\editable{}$°

b

Which side appears opposite the largest angle?

The longest side

A

The shortest side

B

The medium side

C
c

Which side appears opposite the smallest angle?

The shortest side

A

The medium side

B

The longest side

C
Easy
1min

Consider the triangle below.

Easy
< 1min

Consider the triangle below.

Easy
< 1min

Consider the triangle below.

Easy
< 1min
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Outcomes

II.G.CO.10

Prove theorems about triangles. Theorems include: measures of interior angles of a triangle sum to 180°; base angles of isosceles triangles are congruent; the segment joining midpoints of two sides of a triangle is parallel to the third side and half the length; the medians of a triangle meet at a point.

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