Topics
Congruence and Similarity
topic badge
CanadaON
Grade 10

Similarity in triangles

Lesson
Practice

Interactive practice questions

Consider the two similar triangles.

On the left, small triangle has vertices labeled $D$D, $E$E, and $C$C in a clockwise direction. vertex $D$D marked with a single arc, vertex $C$C marked with a double arc, and vertex $E$E marked with a three arc. On the right, a larger triangle has vertices labeled $L$L, $M$M, and $N$N in a clockwise direction. Vertex $N$N marked with a single arc, vertex $M$M marked with a double arc, and vertex $L$L marked with a three arc. All sides and angles are not explicitly labeled.
a

By filling in the gaps, match the corresponding angles.

$\angle$∠$D$D corresponds to $\angle$∠$\editable{}$

$\angle$∠$E$E corresponds to $\angle$∠$\editable{}$

$\angle$∠$C$C corresponds to $\angle$∠$\editable{}$

b

$CD$CD corresponds to which side in $\triangle LMN$△LMN?

$LN$LN

A

$ML$ML

B

$MN$MN

C
c

$CE$CE corresponds to which side in $\triangle LMN$△LMN?

$LN$LN

A

$MN$MN

B

$ML$ML

C
Easy
1min

Consider the two similar triangles.

Easy
< 1min

Given that all three angles in one triangle match all three angles in another triangle, can you be sure these triangles are similar?

Easy
< 1min

Consider the two similar triangles.

Easy
< 1min
Sign up to access Practice Questions
Get full access to our content with a Mathspace account
Book a Demo
Sign up for free

Outcomes

10D.T1.01

Verify, through investigation, the properties of similar triangles

What is Mathspace

About Mathspace