Answer:
Explanation:
1. Apply the Pythagoras theorem to determine the value of x, we have;
=
+

=
+

= 289
x =

x = 17
2. Trigonometric ratios of <D.
i. Sin <D =

=

ii. Cos <D =

=

iii. Tan <D =

=

3. Trigonometric ratios of <F.
i. Sin <F =

=

ii. Cos <F =

=

iii. Tan <F =

=
