Question

in the figure,find the length of pc

Answer 1

Answer:

you may also use Pythagoras thm bit this is More easy

Step-by-step explanation:

sinΦ=opp

hypo

=pd

pc

Sin 30°=1

2

. opp=1

hypo=2

PC=2 cm

Answer 2

Answer:

PC=30cm

Step-by-step explanation:

In ∆APM

sin30°=PM/PA

1/2=PM/100

PM=50cm

Now BC=DM (SIDES OF SQUARE)

PM=PD+DM

50cm=PD+35cm

PD=15cm

Now, In ∆PDC,

sin30°=PD/PC

1/2=15/PC

PC=30cm