In triangle abc angle equals to 90 degree ab equals to 5 cm BC equals to 13 cm and AD perpendicular BC then the length of Ab is
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Answer:
The length of
Step-by-step explanation:
Given ΔABC, ∠A=90°, AB=3cm, BC=5cm
AD is perpendicular to BC.
We have to find the length of AD
In ΔADB and ΔCAB
∠ADB=∠BAC (each 90° given)
∠B=∠B (common)
By AA similarity rule, ΔADB~ΔCAB
Hence, corresponding sides are in proportion
⇒
⇒
By Pythagoras theorem in ΔADB
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