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Mathematics 22 Online
OpenStudy (chycora):

2. Above are two different models of the same triangle. If the area of the model on the left is 24 sq cm, what is the area of the model on the right? 96 sq cm 120 sq cm 48 sq cm 26.5 sq cm

OpenStudy (anonymous):

26.5

OpenStudy (jhannybean):

I don't even see a model.

OpenStudy (anonymous):

dont need a modle to no that

OpenStudy (anonymous):

then what do u think william.1233

OpenStudy (anonymous):

if u dont need a model

OpenStudy (jhannybean):

How are you going to say you don't need a model when it clearly states it in the problem?

OpenStudy (chycora):

so D is the answer

OpenStudy (anonymous):

yes it is d

OpenStudy (jhannybean):

Can you explain why it is D?

OpenStudy (anonymous):

u can get help from it http://openstudy.com/study#/updates/54e8d0bce4b08080d2e57891

OpenStudy (chycora):

k

OpenStudy (jhannybean):

it's not D.

OpenStudy (chycora):

k so wat is it

OpenStudy (jhannybean):

Have you tried solving it?

OpenStudy (jhannybean):

Think of the units for area.

OpenStudy (chycora):

i think it is 48

OpenStudy (jhannybean):

Hope you're not just guessing.

OpenStudy (chycora):

no

OpenStudy (anonymous):

she ant guessin how we no u ant guessing

OpenStudy (jhannybean):

Fir the triangle on the left, you're given 1 cm = 5 ft. \(\therefore\) 1 cm\(^2\) = 25 ft\(^2\) Area for the first triangle = 24 cm\(^2\) \(\implies \triangle_1=600~ft^2\)

OpenStudy (chycora):

k thanx

OpenStudy (jhannybean):

And so the second ratio would be 1 cm = 2.5 ft 1 cm\(^2\) = 6.25 ft\(^2\) \[A_{\triangle2} = \frac{600~}{6.25~} = 96~cm^2\]

OpenStudy (jhannybean):

Try to work out the problem next time instead of blatantly choosing answers.

OpenStudy (anonymous):

ho u talking to

OpenStudy (jhannybean):

I'd still like to know how you went about getting 26.5 @william.1233 . Could you explain the process?

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