Pearson Edexcel International GCSE (9–1) · MATHEMATICS A · Unit
Unit 1
108 practice questions
Topics covered
Practice questions
71–80 of 108
Question 71
4 marks · Hard
Answer and see the solution →A regular polygon has an interior angle that is 165°. Calculate:
(a)[3 marks]The number of sides of the polygon.
(b)[1 mark]The sum of the interior angles of the polygon.
Question 72
3 marks · Hard
Answer and see the solution →A kite is a quadrilateral with two distinct pairs of adjacent sides equal. List all the lines of symmetry and describe the order of rotational symmetry for a typical kite.
Question 73
4 marks · Hard
Answer and see the solution →Triangle ABC has vertices at A(2,3), B(6,3), and C(2,8).
(a)[2 marks]Calculate the lengths of each side of the triangle.
(b)[2 marks]Determine the type of triangle (by its sides).
Question 74
1 mark · Easy
Answer and see the solution →Write down the mathematical term for an object belonging to a set.
Question 75
1 mark · Easy
Answer and see the solution →Write the following using set notation: Set Q contains the numbers 8, 10 and 14.
Question 76
2 marks · Easy
Answer and see the solution →Let X = \{7, 12, 19\} and Y = \{12, 14, 19\}. Write down:
(a)[1 mark]X \cap Y
(b)[1 mark]X \cup Y
Question 77
3 marks · Easy
Answer and see the solution →The Venn diagram below shows the sets P and Q.
Venn diagram for sets P and Q in universal set S (a)[1 mark]What is the name given to the area shared by sets P and Q?
(b)[2 marks]Shade the area representing P' in the diagram above.
Question 78
2 marks · Easy
Answer and see the solution →Write down the meaning of the symbol '' in set notation.
Question 79
2 marks · Easy
Answer and see the solution →A set T contains the colours: red, blue, green, yellow. One of the colours is removed at random. Write down the set of colours remaining if 'blue' is removed.
Question 80
2 marks · Easy
Answer and see the solution →If the universal set U = \{1, 2, 3, 4, 5\} and A = \{2, 3\}, write down the elements of A'.