G is the centroid of a triangle ABC with AB=AC=13 cm and BC=10 cm. Find the length of AG.
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Step-by-step explanation:
AB=AC=13cm,BC=10cm
perpendicular line is drop on BC from point A and is named D
phythagoras on triangle ADC,
AC²=AD²+DC²
13²=AD²+5²
AD²=144
AD=12 cm
and since G is a centroid,it is a midpoint of AD,hence AG=AD/2=12/2=6cm
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Answer:
Answer 6cm........
Step-by-step explanation:
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