1) What type of triangle is this? a) Acute b) Right-angled c) Equilateral d) Isosceles e) Scalene 2) What type of triangle is this? a) Isosceles b) Right-angled c) Equilateral d) Obtuse e) Scalene 3) What type of triangle is this? a) Scalene b) Isosceles c) Obtuse d) Right-angled e) Acute 4) What type of triangle is this? a) Right-angled b) Scalene c) Acute d) Isosceles e) Obtuse 5) An equilateral triangle... a) has 3 different lengths and 3 different angles. b) has 3 sides of equal length. c) has all 3 sides the same length and each inside angle is the same size. 6) A right-angled triangle... a) has one angle 90º. b) has 3 sides all different lengths. c) has an angle less than 90º. 7) An isosceles triangle... a) has all 3 sides different lengths. b) has 2 sides that are equal length. c) has all 3 sides equal length. 8) A scalene triangle... a) has all 3 sides different lengths and all 3 angles different sizes. b) has all 3 equal sides the same length. c) has one 90º angle. 9) An obtuse angle is... a) an angle more than 90º but less than 180º b) an angle less than 90º 10) An acute angle is... a) an angle more than 90º but less than 180º b) an angle less than 90º

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