topic badge

7.04 The triangle inequality

Interactive practice questions

Given three side lengths $7$7, $12$12, and $17$17:

a

Complete the following statements, using $=$=, $>$>, or $<$<:

$7+12\editable{}17$7+1217

$7+17\editable{}12$7+1712

$17+12\editable{}7$17+127

b

Do these lengths form a valid triangle?

Yes

A

No

B

Yes

A

No

B
Easy
Less than a minute
Sign up to try all questions

Given three side lengths $3.2$3.2, $7.4$7.4, and $9.6$9.6:

Given three side lengths $9$9, $4$4, and $5$5:

Given three sides $3.1$3.1, $7.7$7.7 and $11.8$11.8.

Outcomes

GEO-G.CO.10

Prove and apply theorems about triangles.

What is Mathspace

About Mathspace