Answer:
in 2 d) X=11.112
Explanation:
since 14.3 is opposite of 90° it's can be assumed as hypotenuse (h)
and let's assume base(b)= X
then perpendicular (p)= 9
now
we know
by Pythagoras theorem
h^2=p^2+b^2
or, (14.3)^2 = 9^2+ x^2
or, 204.49 = 81+ x^2
or, 204.49-81= x^2
or, 123.49= x^2
or, √123.49= X
11.112 = X
hence, X = 123.112