angle ABC is right - angled at C . If AC = 5 cm and AB = 13 cm , find the length of BC
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Answer:
ABC is right-angled at C If AC = 5 cm and BC=12 cm find the length of AB
Step-by-step explanation:
Correct option is
A
13
Vector Addition
REF.Image
Given , ΔABC is right angled at C.
AC=5cm
BC=12cm
AB=?
Using Pythagoras theorem.
REF.Image
c
2
=a
2
+b
2
c=
a
2
+b
2
so in ΔABC
AB=
(AC)
2
+(CB)
2
AB=
(5)
2
+(12)
2
AB=
25+144
AB=
169
AB=13cm
solution
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