Question

in the above figure if pt=6cm pa=3cm then ab =

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Answer 1

Answer:

5cm

Step-by-step explanation:

by pytagoras theorem

pa2=pt2+tb2

we know that atb is equalateral triangle

tb=√pa2-pt2

tb=√6^2-3^2

tb=√36-9

tb=√25

tb=5

in equalateral triangle all sides are equal ab=bt=at

so ab =5cm