Question

What is the length of BC? A.7 B.12 C.13 D.17 E V60 F. V119

Answer 1

Answer: C. 13

Step-by-step explanation:

Using pythagoras ;

$BC = \sqrt{5^{2}+12^{2} }$

$BC=\sqrt{25 + 144}$

$BC =\sqrt{169}$

$BC= 13$

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Answer 2

Answer:

BC = 13

Step-by-step explanation:

Pitagoras:

H^2= 5^2 + 12^2

H^2=25 + 144

H^2= 169

H= V 169 ---- square root

H= 13 -------BC