A bridge across a valley is 150 m in length. The valley walls make angles of 60 degrees & 54 degrees with the bridge that spans it. How deep is the valley, to the nearest metre
Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
you first need to find the missing angle
180 - (60 + 54) = 66 degrees
then you use this to find either x or y (by using the law of sines)
Not the answer you are looking for? Search for more explanations.
after you have 2 sides, and an included angle between them, you can use them in the formula
A = (1/2)*b*c*sin(theta)
A = area of the triangle
b = side 1
c = side 2
theta = angle between side 1 and side 2
finally, when you figure out the area, you can use it to solve for h in
A = (b*h)/2
So, I did it a different way. I split the triangle into two triangles and then I isolated how long ewach triangle would be then I found the depth but I was not getting the right answer