Mathematics
OpenStudy (anonymous):

The ratio of the areas of two similar polygons is 225:36. What is the ratio of their corresponding sides?

OpenStudy (callisto):

ratio of area = (ratio of sides)^2

OpenStudy (callisto):

So, ratio of sides $\sqrt{\frac{225}{36}}=?$

OpenStudy (anonymous):

15:6 or 5:2

OpenStudy (anonymous):

ty guys

OpenStudy (anonymous):

have another question

OpenStudy (callisto):

fire away

OpenStudy (anonymous):

Two triangles are similar and have a ratio of similarity of 8:3. What is the ratio of their perimeters and the ratio of their areas?

OpenStudy (anonymous):

would it be perimeter is 8:3 and area is 64:9

OpenStudy (callisto):

I think so, not very sure though :| @ParthKohli What do you think?

Parth (parthkohli):

Correct!

OpenStudy (anonymous):

thank you :D ive done this next one before but i dont remember the formula Two congruent squares overlap at the midpoint of their sides. If a square has a side of 18 cm, what is the area of the figure?

Parth (parthkohli):

This one is easy. imagine ir or draw :)

Parth (parthkohli):

i'm having pizza can you guide kevin on this calli?

OpenStudy (callisto):

|dw:1338129657657:dw| Hint: the diagram :)

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