1) The area of a triangle a) Half×base×height b) L+w×2 c) L×W d) S×4 e) S×S f) S×3 2) The perimeter of equilateral triangle is 27cm and it's height is7.8,then it's area is a) 34.7cm² b) 32.4cm² c) 34.8cm² d) 39cm² e) 40cm f) 34.2cm² 3) 213+57=57+213 a) Commutative property b) Associative property c) Distributive property d) Multiplying by1 e) Multiplying by0 4) The smallest natural number is a) 1 b) 2 c) 3 d) 4 e) 5 f) 0 5) The additive neutral element in N is a) 1 b) 6 c) 4 d) 3 e) 9 f) 0

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