trigonometry yr 10 -

[fresh lark]

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[median basin]

what trig rule should we use here?

[long chasm]

ive found angle ABC, just confused on C

and for angle ABC i used cosign rule

[median basin]

draw a line from c to the ground

since its to the ground its perpendicular to the ground

and connect it to a

see if you can figure it out from here

[long chasm]

alr

ay yes, i think i did it - i first found angle CAB through cosign then substracted that from 90 to find the other adjacent angle of A- then i did sine rule to find c. Would this be correct

[long chasm]

also when u bring c to the ground - does angle C now become a right angle or does it remain at the same angle

[median basin]

uhh you don’t need sine rule just use simple right triangle trig

[median basin]

same angle…?

[long chasm]

+close