EduTest Year 11 Mathematics free practice questions with answers
Read question 1 and its full worked answer from paper 1 of our 20-paper EduTest Year 11 Mathematics set, then download the 4-page PDF. These are original practice questions, not official past papers. Page updated 3 November 2026.
In triangle ABC, angle A measures 61° and angle B measures 62°. What is the measure of the exterior angle at C (formed by extending side BC)?
A 237
B 123
C 57
D 119
Correct answer: B — 123
- An exterior angle of a triangle equals the sum of the two opposite interior angles.
- 61° + 62° = 123°.
- (Check: interior C = 180 - 123 = 57, and 57 + 123 = 180.)
- Why the other options are wrong:
- A (237): Not the right total.
- C (57): That is the interior angle at C.
- D (119): Use both of the far-away angles.
Triangle angles total 180°; a polygon's interior angles total (n - 2) × 180°; any polygon's exterior angles total 360°.
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Questions about this sample
What is in the EduTest Year 11 Mathematics free sample?
The first 3 questions from paper 1 of the set, in the real exam layout, followed by the step-by-step worked answers. It is a 4-page PDF; this page shows question 1 with its answer.
How many full EduTest Year 11 Mathematics papers are there?
20 original papers for students preparing for Year 11 entry (EduTest). Each is 60 multiple-choice questions in 30 minutes (4 options each, no calculator), with a worked solution for every question. Papers start at A$11.99 and download instantly as a PDF.
Are these official past papers?
No. The sample is taken from our own original practice paper and is not an official past paper or affiliated with any exam authority.