Question

The figure shows a triangular wooden frame ABC. The side AD of the frame has rotted and needs to be replaced.
What is the length of the wood that is needed to replace AD?

please explain it so i understand it?

Answer 1

first find AB and DB and then subtract

Answer 2

AB/BC = tan45
AB= BC tan45
similarly DB=BCtan30
and so on...

Answer 3

okay give me a second haha

Answer 4

AB=12?

Answer 5

and DB=6.93?

Answer 6

correct

Answer 7

keep it up

Answer 8

so 5.07?

Answer 9

this visual may help

Answer 10

i understand it now :)