Answer:
value of a = 6.93 m
hence , (b.)
Step-by-step explanation:
the given triangle is a right angled triangle, so
by using trigonometry.
=》

and we know,
=》

so, by above values of tan ( a ) we get,
=》

=》

=》

=》

=
=》

hence, a = 6.93 m
Answer:
C.
Step-by-step explanation:
The eqn. of a circle with centre (h,k)and radius ris given by,
Answer:
a) night, from cool land to sea
b) day, from cool sea to land