Got no clue how to solve this | Mathematics | Page 1

torpid gorge Jun 16, 2025, 5:38 PM

#

Help

outer lichenBOT Jun 16, 2025, 5:38 PM

#

tall juniper Jun 16, 2025, 5:50 PM

#

AB = 2 cm, and so is AF. Because AF = 2 cm and FD is a 90° angle, you can write this:
AF = 2 cm
FD = 90°
DA = ?

I would begin with this and then see if you can figure it out. Remember to also use SOS CAH TOA. Good luck.

#

I would then reread the question and try to solve it again.

torpid gorge Jun 16, 2025, 5:52 PM

#

how do i use

#

trig here

#

theres no definite value here

last drift Jun 16, 2025, 6:42 PM

#

Denote ∠CAB=x, then by angle chasing, triangles CFB and DAB are similar. So, FC/AD=FB/2, AD=2/sin(x/2) and FB=4sin(x/2). Thus, FC=4 and AC=6.

torpid gorge Jun 16, 2025, 6:43 PM

#

are D,F,B collinear?

last drift Jun 16, 2025, 6:43 PM

#

no

torpid gorge Jun 16, 2025, 6:44 PM

#

oh ok

#

wait

#

how is CFB and DAB similar

last drift Jun 16, 2025, 6:45 PM

#

mark angle x and deduce the remaining angles from it

#Got no clue how to solve this