Free Year 9 Area of triangle Practice | Skillo

Year 9 students sitting their final NAPLAN need to be confident with area of triangle. Solve problems involving the area of triangles and parallelograms using established formulas. Skillo has targeted practice questions for this exact skill, mapped to the Australian Curriculum v9.0, free and ready to go.

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What is tested: Area of triangle

  • ✓Solve problems involving the area of triangles and parallelograms using established formulas.
  • ✓Questions may include word problems set in real Australian contexts
  • ✓Both calculator and non-calculator question types are covered

Sample questions

Question 1 — Easy

An L-shaped room has sides labeled (2x) m, 5 m, x m, 3 m, x m, and 2 m. The perimeter is 26 m. What is the value of x?

0) 3
1) 4
2) 5
3) 6

Answer: Perimeter = 2x + 5 + x + 3 + x + 2 = 4x + 10. Set equal to 26: 4x + 10 = 26, so 4x = 16, x = 4.

Question 2 — Medium

A rectangle has a perimeter of 28 cm. Its length is 9 cm. Find the width.

A) 4 cm
B) 5 cm
C) 7 cm
D) 9 cm

Answer: Width = (28 ÷ 2) − 9 = 14 − 9 = 5 cm

Question 3 — Hard

A rectangle has an area of 24 m². Its width is 6 m. What is its height?

A) 3 m
B) 4 m
C) 5 m
D) 6 m

Answer: Height = Area ÷ width = 24 ÷ 6 = 4 m

How to use Skillo for Year 9 Numeracy

  1. Select Year 9 and Numeracy on the home screen
  2. Use Quick Practice — questions on area of triangle will appear as part of the session
  3. Check the Skill Breakdown on your profile to track your accuracy on area of triangle specifically
  4. Review explanations after each question to understand the reasoning behind correct answers

Skillo is free, requires no email or account details, and is built specifically for Australian students. Every question is mapped to the Australian Curriculum v9.0 and filtered by skill so your child practises exactly what they need.

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No account needed. No email. No credit card.