In triangle ABC right angled at C, if AB= 20cm and AC= 12cm, find the lenght of BC
Answers
Answered by
10
AB²=BC²+AC²
20²=BC²+12²
BC²=400-144
BC=√256
BC=16cm
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Answered by
3
Answer:
(AB)²=(AC)²+(BC)²
(20)²=(12)²+(BC)²
400-144=(BC)²
√256=BC
16cm=BC
Step-by-step explanation:
We will use Pythagoras theorem
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