Finding unknown angles using angle properties

P5 Mathematics · Measurement & Geometry · 108 questions · difficulty D1–D5 · Singapore MOE-aligned

Sample questions

SAMPLE 1

In the figure, three angles on a straight line are 30°, 2x°, and 50°. What is the value of x?

SAMPLE 2

In the figure, three angles on a straight line are 30°, 2x°, and 50°. What is the value of x?

SAMPLE 3

Two roads cross each other. One angle formed is 73°. What is the adjacent angle on the same straight line?

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