Qualification > Math

IGCSE MATHS DOUBTS HERE !!!!

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elemis:

--- Quote from: Kimo Jesus on September 17, 2010, 07:34:08 am ---oh Thanks !.That was easy , its just that i cant put the words into a diagram :/ Thanks alot!

--- End quote ---

Practice makes perfect ;)

No worries :)

WARRIOR:
ARI

PAGE 196 , QUESTION 8 , (C)

thanks in advanced

elemis:
(a) Since tan x = Opposite/Adjacent

Hence, tan 25 = h / length OA

Re-arranging we get h / tan25 = length OA

(b) Same idea as above :  tan 33 = h / length OB  

Re-arranging give  Length OB = h/ tan33

Give me some time for (c)

WARRIOR:

--- Quote from: Ari Ben Canaan on September 17, 2010, 04:13:10 pm ---(a) Since tan x = Opposite/Adjacent

Hence, tan 25 = h / length OA

Re-arranging we get h / tan25 = length OA

(b) Same idea as above :  tan 33 = h / length OB  

Re-arranging give  Length OB = h/ tan33

Give me some time for (c)

--- End quote ---

tyt

elemis:
Look carefully at triangle ABO. It is a right angle triangle. Hence, using Pythagoras's Theorem :



















Solving this gives h = 22.7 m

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