Question

In right angled ∆LMN, Angle LMN = 90°
Angle L = 50° and Angle N = 40°,
write the following ratios.
(i) sin 50°
(ii) cos 50
(iii) tan 40° (iv) cos 40°​

Answer 1

Answer:

i = sin 50°

= opposite side of 50°\ hypotenuse =MN\LN

ii= cos 50°

=adjacent side of 50°\hypotenuse

=LM\LN

iii= tan 40°

=opposite side of 40°\adjacent side of 40 °= LM\MN

iv= cos 40°

=adjacent side of 40°\hypotenuse= MN\LM