Question Number 11475 by tawa last updated on 26/Mar/17

Answered by sm3l2996 last updated on 26/Mar/17

Question 105:(B)  Question 106:  ΔAFD=(x^2 /2)=((25)/2)=12.5 (C)

Commented bytawa last updated on 26/Mar/17

please workings

Commented bysm3l2996 last updated on 26/Mar/17

AF=BE=(√(x^2 +x^2 ))=x(√2)  and AD=BC=x  so DF=(√(AF^2 −AD^2 ))=(√(2x^2 −x^2 ))=x  ΔAFD=((DF×AD)/2)=(x^2 /2)

Commented bytawa last updated on 27/Mar/17

i grab. please working for (105)

Commented bytawa last updated on 27/Mar/17

God bless you

Commented bysm3l2996 last updated on 27/Mar/17

Commented bytawa last updated on 27/Mar/17

I really appreciate sir. God bless you.

Commented bysma3l2996 last updated on 27/Mar/17

you welcome

Answered by mrW1 last updated on 27/Mar/17

Q105  let′s say someone goes from west to  east. he turns z° to the left, then  180−x° to the right,.... since he  finally goes to east again, it means that  he totally turned 0°  z−(180−x)+(180−x)−90+y=0  ⇒z=90−y=90−60=30°

Commented bymrW1 last updated on 27/Mar/17

Commented bytawa last updated on 27/Mar/17

Thanks sir. God bless you.