Quiz

Grade 9: Geometry: polygons, Pythagoras, transformations

10 easy questions for grade 9, following the national curriculum: angles in polygons, Pythagoras, enlargement, scale, bearings.

Type the number or choose the right answer. When you finish, click Check answers and see the solutions.

1. What is the sum of the interior angles of a pentagon, in degrees?Enter a number only

2. How many degrees is an exterior angle of a regular hexagon?Enter a number only

3. How many degrees is an interior angle of a regular hexagon?Enter a number only

4. What is the sum of the exterior angles of any polygon, in degrees?Enter a number only

5. A right triangle has legs 6 cm and 8 cm. How long is the hypotenuse in cm?Enter a number only

6. Which regular polygon can NOT tile the plane on its own without gaps?

A. equilateral triangle

B. square

C. pentagon

D. hexagon

7. In an enlargement a 4 cm segment becomes 12 cm. What is the scale factor?Enter a number only

8. Which transformation changes the side lengths?

A. enlargement

B. translation

C. rotation

D. reflection

9. On a 1 ÷ 100 000 map a distance is 3 cm. How many kilometres is it in reality?Enter a number only

10. What is the bearing of due east, measured clockwise from north, in degrees?Enter a number only