Need help for three questions (1 Viewer)

[BlueGas]

 

[integral95]

Q6 you're solving sinx = +-(1/root2)

Q7 limiting sum question with 3/5 as the ratio (also be wary of the 2 in the front)

Q8 PUQ and PRT are similar triangles, use that to find the length x (i.e UT) and add 8 and 6 to get PS

 

[BlueGas]

Q6 you're solving sinx = +-(1/root2)

Q7 limiting sum question with 3/5 as the ratio (also be wary of the 2 in the front)

Q8 PUQ and PRT are similar triangles, use that to find the length x (i.e UT) and add 8 and 6 to get PS

For Q8, is it 8/4 = (8 + x)/(4+16)?

 

[si2136]

6. (c)
8. (d)

 

[si2136]

For Q8, is it 8/4 = (8 + x)/(4+16)?

(8/4) = (20/8+x)

 

[BlueGas]

(8/4) = (20/8+x)

Why is it like that though? Because I done left side for small triangle over right side for small triangle = left side for big triangle over right side for big triangle, I mean yeah you're way gets the right answer but what if I didn't know the correct answer? How would I know whether to use mine or yours?

 

[rand_althor]

Why is it like that though? Because I done left side for small triangle over right side for small triangle = left side for big triangle over right side for big triangle, I mean yeah you're way gets the right answer but what if I didn't know the correct answer? How would I know whether to use mine or yours?

Make sure the equal angles are in the same place. It might help if you draw them separately like so: