Please solve q 87 ?
3 Answers
Explanation:
Let
let
as
given
Explanation:
There's probably a cool trick I'm missing, but I didn't peek at the other answer. When I'm stuck I find putting it on the Cartesian grid is a way to make progress.
Let's say
Y coordinate first, it's easier:
X:
We're given
Explanation:
Second answer for this one.
The statement is claimed for any triangle, so we only need to work it out for one. Let's forget about the 1.2 for a bit and work this out for one of the usual suspects, say 45/45/90 with legs length six.
We'll put the right angle at the origin and the sides along the axes,
AD is the median to BC so D is the midpoint of BC,
E on AD such that
CE
CE is
So in the original question