Glen Loy's answer to Jia Yi's Secondary 4 A Maths question.
Ty. But I don't get the third step cause I thought OB is square root of 53 (7X7 + 2X2) by Pythagoras theorem ?
Hmmm, where did u get 53 from?
By Pythagoras theorem I thought
OB is square root 53 instead ?
OB is square root 53 instead ?
Oh! So sorry! Yes u are right! It's 53 please change all root18 to root53 but it's not really the matter since it doesn't affect the final answer :) good on you for pointing it out!
Ohhh... Hahaha it's okay :) Ty so much :)
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