Question

Havent been able to find the answers on this​

Answer 1

1.379 or 1.4 (to 1dp)

Explanation:

For this question we obviously need to use trigonometry. We will use the equation O = S x H, where O is the opposite side, S is sin and H is the hypotenuse.

• The equation will be sin(50) x 1.8
• This approximately equals 1.379, or 1.4 to 1dp

Answer 2

We are given that this triangle is a right triangle, one angle measurement, and one side length. Therefore, to figure out the other side length, we can use a trigonometric function to figure out side x. If we orient the triangle to angle T, then the hypotenuse is the side length measuring 1.8 units and side length x is the opposite (because it is opposite from angle T). This insinuates we use a sine to figure out side length x because sine finds the ratio between the opposite and the hypotenuse:

sin(50 deg) = x/1.8

1.8*sin(50 deg) = x

x is about 1.3788