GCSE Math Revision Exam Test Guide Questions and Answers

Exterior angle - ANSWER-360 / number of sides Interior angle - ANSWER-180 - Exterior angle Area of triangle - ANSWER-1/2 x B x H Area of parallelogram - ANSWER-B x H Area of trapezium - ANSWER-1/2 x (total of parallel sides) x H Area of circle - ANSWER-π x r2 Circumference of circle - ANSWER-π x D Volume of cuboid - ANSWER-L x W x H Surface area of solid - ANSWER-Area of net Angles in a triangle - ANSWER-Add up to 180 Angles on a straight line - ANSWER-Add up to 180 Angles in a quadrilateral - ANSWER-Add up to 360 Angles round a point - ANSWER-Add up to 360 Isosceles triangle - ANSWER-Two sides are the same. Two angles are the same. When one straight line crosses two parallel lines - ANSWER-The two sets of angles are the same Alternate angles (Z angles) - ANSWER-Are the same Supplementary angles (U angles) - ANSWER-Add up to 180 Corresponding angles (F angles) - ANSWER-Are the same Sum of interior angles in a polygon - ANSWER-(number of sides - 2) x 180 Sum of exterior angles of a polygon - ANSWER-360