1/2, 3/5, 6/9, 7/8

112.5

2D shape with straight edges

11

Obtuse

a = 29

11217

127 (double the number and add one)

42.5cm

72.25cm2

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1/2, 3/5, 6/9, 7/8

112.5

2D shape with straight edges

11

Obtuse

a = 29

11217

127 (double the number and add one)

42.5cm

72.25cm2

500 grams, 5/9 kg, 0.75kg

Four

180 degrees

1 2/15 or 17/15

0.84

1 3/4

19:35

17 (only divisible by 1 and itself)

Radius

A solid in 3 dimensions with flat faces