Area of a triangle Sunday, 16 June 2019.

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Presentation transcript:

Area of a triangle Sunday, 16 June 2019

h b h b b x h Area of rectangle = Area of triangle = Half the area of the rectangle =  x b x h b h Area of a triangle =  x b x h Where the h is the perpendicular height Units of area are mm2, cm2, m2, km2, ....

Work out the area for each of the following triangles (a) Example Work out the area for each of the following triangles (a) 7cm 8cm (b) 12cm 7cm

(c) 5m 14m (d) 7cm 3cm

(e) 9m 7m (f) 7cm 6cm 4cm

An Arrow had is in the shape as shown below. Calculate its area Example An Arrow had is in the shape as shown below. Calculate its area 4cm 8cm 3cm