NZ Level 7 (NZC) Level 2 (NCEA)
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Determination of a Triangle

Interactive practice questions

Given three sides $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

Is this a valid triangle?

Yes

A

No

B

Yes

A

No

B
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Given three sides $3.2$3.2, $7.4$7.4 and $9.6$9.6.

Given three sides $9$9, $4$4 and $5$5.

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

Outcomes

M7-4

Apply trigonometric relationships, including the sine and cosine rules, in two and three dimensions

91259

Apply trigonometric relationships in solving problems

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