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Grade 6 · Year 7 · Class 6 · ages 11–12

Angles in triangles, on a line and round a point worksheets.

Free printable angles in triangles, on a line and round a point worksheets with answer keys. Finding a missing angle using 180° in a triangle or straight line and 360° round a point. Choose the level and the number of questions, then download a PDF or print.

  • Grade 6
  • Year 7 · Class 6
  • Ages 11–12
  • PDF + print
  • Answer key
  • Free
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Sheet 54461. Change the options above or make a new worksheet.

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Angles in triangles, on a line and round a point

Grade 6 · Medium · 12 questions · Sheet 54461

Name Date Score / 12

  1. 1.Angles on a straight line add up to 180°. One angle is 59°, so the other is
  2. 2.Two angles of a triangle are 39° and 70°. The third angle is
  3. 3.Angles on a straight line add up to 180°. One angle is 22°, so the other is
  4. 4.Angles on a straight line add up to 180°. One angle is 33°, so the other is
  5. 5.Angles on a straight line add up to 180°. One angle is 145°, so the other is
  6. 6.Angles on a straight line add up to 180°. One angle is 100°, so the other is
  7. 7.Angles on a straight line add up to 180°. One angle is 26°, so the other is
  8. 8.Angles on a straight line add up to 180°. One angle is 125°, so the other is
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Angles in triangles, on a line and round a point

Grade 6 · Medium · 12 questions · Sheet 54461

Name Date Score / 12

  1. 9.Two angles of a triangle are 55° and 40°. The third angle is
  2. 10.Two angles of a triangle are 61° and 36°. The third angle is
  3. 11.Angles on a straight line add up to 180°. One angle is 45°, so the other is
  4. 12.Angles on a straight line add up to 180°. One angle is 157°, so the other is
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About angles in triangles, on a line and round a point worksheets

Finding a missing angle using 180° in a triangle or straight line and 360° round a point. This worksheet maker is aimed at Grade 6 (Year 7, Class 6) (ages 11–12) and makes new questions every time, with the answers worked out by a maths engine.

Teaching tip

Angles in a triangle and on a straight line add up to 180°. Angles round a point add up to 360°.

What the three levels look like

  • Easy: Two angles of a triangle are 29° and 56°. The third angle is ___
  • Medium: Two angles of a triangle are 68° and 35°. The third angle is ___
  • Challenge: Angles round a point add up to 360°. Three angles are 93°, 43° and 164°, so the fourth is ___

Keep going

Related worksheets

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Grade 6 · GeometryArea of rectangles, triangles and parallelogramsThe area of a triangle with base 14 cm and height 5 cm is (cm²) ___Make a worksheet →Grade 5 · GeometryVolume of cuboidsA box is 9 cm long, 8 cm wide and 6 cm high. Its volume in cm³ is ___Make a worksheet →Grade 7 · GeometryCircles, circumference and areaArea of a circle with radius 10 cm (use 3.14): ___Make a worksheet →Grade 7 · GeometrySurface area of cuboidsA cuboid is 9 cm long, 5 cm wide and 8 cm high. Its surface area in cm² is ___Make a worksheet →Grade 4 · GeometryArea of rectangles and squaresA rectangle is 15 m by 7 m. Its area in m² is ___Make a worksheet →Grade 8 · GeometryPythagorean theoremA right triangle has legs of 20 and 21. The hypotenuse is ___Make a worksheet →

FAQ

Angles in triangles, on a line and round a point worksheets: questions

What grade are angles in triangles, on a line and round a point worksheets for?

Angles in triangles, on a line and round a point is usually taught around Grade 6 (Year 7, Class 6), for ages 11–12. Every grade has an easy, medium and challenge level, so you can go back to an earlier level or push ahead.

Do these angles in triangles, on a line and round a point worksheets include an answer key?

Yes. Press Download PDF with the answer key switched on and the last page lists every answer. Turn the key off for a clean student copy.

Can I make a new worksheet with different questions?

Yes. Press New worksheet for a fresh set of questions. Each sheet has a sheet number printed on it; open this page with the same level, question count and number to get exactly the same sheet again.

How do I help a child who finds angles in triangles, on a line and round a point hard?

Angles in a triangle and on a straight line add up to 180°. Angles round a point add up to 360°. Start with the easy level, and practise a few minutes every day rather than one long session.

Which value of pi do the circle worksheets use?

They use 3.14 so answers are exact to two decimal places and easy to check.

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Angles in triangles, on a line and round a point (Grade 6): Finding a missing angle using 180° in a triangle or straight line and 360° round a point. Open the practice page or print a worksheet.

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