given the regular pyramid
T.ABCD with a square base
. length AB = 8 , TC = 6. point
P is mid BC. if x is the angle
between TP and BD. determine
the value of cos x.
the circle represents a farm where
(LK) is symetric axe of circle such
as ∀ M of this circle verifying
ML^2 −4MK^2 =0 with LK=150m.
calculate the radius of circle.
please help me...
The sum of age of Hamadou
his wife and theirs son is 100.
n years ago the wife had the
quadruple of his son′s age and
Hamadou was 6 time older than
his son.
Determine theirs ages.
i want that you help me to found
equations.
i found the first : x+y+z=100
please help me for the rest.