M May Triangles Angles of triangle add to 180˚ * o * o * o Straight angle = 180˚

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Presentation transcript:

M May Triangles Angles of triangle add to 180˚ * o * o * o Straight angle = 180˚

M May A C B a c b Area of triangle is half of the area of the rectangle A = 1 / 2 x b x c baseheight Area of triangle isA = 1 / 2 x base x height c b

M May A C B ac b Area of triangle is half of the area of the rectangle A = 1 / 2 x b x ht baseheight Area of triangle isA = 1 / 2 x base x height ht base ht

M May 9cm 4cm 15cm 6cm 7cm 8cm 9cm 7cm 12cm 20 cm 5cm 12cm 5cm 13cm 6cm Calculate the area of each triangle