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Mathematics, 05.05.2020 09:00 butterflycc
Choose the correct angle size from the list below only once to complete each statement in
questions 16 – 19.
I: 16(8-4) x 90°
II: 12(12-8) x 45°
III: (3-2) x 180
IV: (8-4) x 90°
16. The sum of the interior angles of a triangle
A. I B. II C. III D. IV
17. Each interior angle in an equilateral triangle
A. I B. II C. III D. IV
18. The largest angle in a right-angled triangle
A. III B. II C. IV D. I
19. The sum of the interior angles of any quadrilateral
A. I B. II C. III D. IV
20. AB, the diameter of the given semi-circle ABC, is 20 m.
Use =3.14 to calculate the perimeter of the figure correct to two decimal places.
A. 62.80cm B. 62.82cm C. 62.86cm D. 63cm
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