A, B & C form a triangle where ∠ BAC = 90°. AB = 4.6 mm and CA = 12.6 mm. Find the length of BC, giving your answer rounded to 1 DP.
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Answer:
13.4
Step-by-step explanation:
since this is a right angled triangle go straight to using pythogras therom such that both of the shorter sides when each is squared is equal to the square of the longest side
so
a^2 + b^2 =c^2
4.6^2 +12.6^2=c^2
c^2=179.92
c=√179.92
c= 13.4
which c is the longer side BC is 13•4 to I do
Thanks
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