Hii i need help with this problem ?

Gretchen is using an overhead projector to enlarge a drawing so she can make a poster. The original drawing measures 60 mm wide by 80 mm high. She moves the projector so that the width of the projected image is 300 mm. If the original drawing and the projected image are similar figures, what will be the height of the projected image?

A. 440 mm

B. 225 mm

C. 180 mm

D. 400 mm

Question

Hii i need help with this problem ?


Gretchen is using an overhead projector to enlarge a drawing so she can make a poster. The original drawing measures 60 mm wide by 80 mm high. She moves the projector so that the width of the projected image is 300 mm. If the original drawing and the projected image are similar figures, what will be the height of the projected image?

A. 440 mm	

B. 225 mm	

C. 180 mm	

D. 400 mm

anonymous · Answer

60 ----80

300----x

cross multiply...

60x=80*300

go on...

anonymous · Answer

????

hoblos · Answer

tha ratio width/hight must stay the same
so
80/60 = x/300

so x= 300*80/60 = 400

anonymous · Answer

Yea thats true

hoblos · Answer

sorry i've used the ratio    height/width 
but same answer though

kymber · Answer

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