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#1 2023-04-21 20:09:39

Registered: 2007-08-03
Posts: 225

isosceles right-angled triangle

The isosceles right-angled triangle ABC
has its right angle at C. D is an interior point of side BC such that the angle CDA
is 75°. Given that triangle ADC has unit area, prove that BD=2.


#2 2023-05-02 01:44:37

Registered: 2010-06-20
Posts: 9,714

Re: isosceles right-angled triangle

hi Tony123

It's been a while  ... my excuse is I've been away bird watching.  Had this method just before I went ... only just got back.

Will check it later for typos.


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob smile


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