1) < A= a) 90∘ b) 20∘ c) 40 ∘ d) 75∘ 2) <A= a) 27 degrees b) 90 degrees c) 63 degrees d) 180 degrees 3) Which type of triangle is shown here? a) Right angle triangle b) Isossceles c) Scalene d) Obtuse angle triangle e) Acute angle triangle f) equilateral triangle 4) This is an isosceles triangle where angle B and angle C are the same size. What degrees are they? a) 30 degrees b) 75  degrees c) 180 degrees d) 105 degrees 5) The sum of the angles of a triangle are = 360 degrees a) True b) False 6) All the angles shown are the same size. The size of angle A, B and C is a) 60 degrees b) 90 degrees c) 180 degrees d) 45 degrees 7) Find the unknown angle in the triangle. a) 80° b) 50 ° c) 30° d) 60° 8) Find the unknown angle in the triangle. a) 15° b) 20° c) 25° d) 30° 9) Find the unknown angle in the triangle. a) 63° b) 64° c) 65° d) 66° 10) Find the unknown angle in the triangle. a) 34° b) 35° c) 36° d) 37° 11) Find the missing angle in the quadrilateral. The sum of the angles is equal to 360 degrees a) 74 degrees b) 75 degrees c) 83 degrees d) 67 degrees 12) Find the missing angle in the quadrilateral. a) 37 degrees b) 48 degrees c) 49 degrees d) 45 degrees

Calculating the missing angles in a triangle and quadrilateral

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