7. Work out the length of side s to 3 significant figures.

s = 3.381cm

Step-by-step explanation:

We know all the angles because a triangle's angles add up to 180°.

So, we have 90, 65, and 25° angles in this triangle.

To find, s, of this triangle, we need to use Sin because Sin uses the angle opposite of the side, which is 25°.

I am assuming you know your trigonometry, but I attached an image that will help too.

So, we have Sin(25) = opposite/hypotenuse.

We have the length of the hypotenuse, 8cm. So plug it in.

And solve for opposite, which is the side, s.

Sin(25) * 8 = opposite.

3.381cm = s.

Hope this helps

where is the image?

step-by-step explanation:

step- i d k and i d c : )

you: : 0

bye