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Delta ABC is right angled at A (Fig 11.2...

`Delta ABC` is right angled at A (Fig `11.25`). `AD` is perpendicular to `BC.` If `AB=5cm, BC=13` and, find the area of `DeltaABC` Also find the lenght of `AD.`

Text Solution

Verified by Experts

In right angled triangle BAC, `AB = 5 cm, BC = 13 cm and AC = 12 cm.`
Area of triangle BAC =` 1/2 × Base × Height`
= `1/2 × 5 cm × 12 cm`
= `30 cm2`
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