Question

(ii) Prove the triangle ABC is right angled.
48 cm
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Answer 1

Answer:

ABC is right angled at C.

AB2=BC2+AC2

Let's put the values, 

92=BC2+12

BC=80cm=8.94cm

Step-by-step explanation:

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Answer 2

Answer:

find the HCF of following expressions

x^2+2^x, X^2-4 and x^2+3x+2