Topics
Geometry
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New Zealand
Level 5

Angles in Triangles

Lesson
Practice

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

Name the smallest and largest sides in each of the following:

Easy
2min

Why is it not possible to make the following triangle?

Easy
< 1min

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

Easy
< 1min
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Outcomes

GM5-5

Deduce the angle properties of intersecting and parallel lines and the angle properties of polygons and apply these properties

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