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Mathematics 12 Online
kaydademon:

ss below

kaydademon:

1 attachment
kaydademon:

@smokeybrown @florisalreadytaken

Florisalreadytaken:

again, a proportion \[ \frac{7}{4}=\frac{34}{x} \ \ \Rightarrow \ \ 7x=136\] \[ x=? \]

SmokeyBrown:

Same concept as before. We know the ratio between the bigger triangle and the smaller triangle is 34/7, based on the side lengths. We can see that side RS is 34/7 times longer than the corresponding side OP. In the same way, side SQ should be 34/7 times longer than the corresponding side NP. NP is length 4. 4 * (34/7)=? Yeah and the relationship that Flor set up is correct, you could use that too

kaydademon:

21.3714286

Florisalreadytaken:

how did you get that?

kaydademon:

wait in decimal form its \[19\frac{ 3 }{ 7}\]

Florisalreadytaken:

or 19.4, yes -- thats decimal

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