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in the diagram vectors OR = 4/5OP, OP = p, and OQ = q and PS:SQ = 1:4
The area of triangle PRS is 5 cm2
. What is the area of ORSQ?
 2 years ago
 2 years ago
in the diagram vectors OR = 4/5OP, OP = p, and OQ = q and PS:SQ = 1:4 The area of triangle PRS is 5 cm2 . What is the area of ORSQ?
 2 years ago
 2 years ago

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RISH_SHARMABest ResponseYou've already chosen the best response.2
dw:1333019010366:dw
 2 years ago

RISH_SHARMABest ResponseYou've already chosen the best response.2
let me know if you want to know what ive got so far
 2 years ago

mcnalljjBest ResponseYou've already chosen the best response.0
Are there any right angles?
 2 years ago

MertsjBest ResponseYou've already chosen the best response.1
OP=p OR=.8p p=1.25OR OPOR=PR p.8p=PR 1/5p=PR PR/OR=.2P/.8P=1/4 So the triangles are similar by AA similarity. The ratio of the areas of similar triangles is the square of the ratio of the corresponding sides. So (Area of triangle PRS)/(Area of triangle POQ)=1/16 = 5/x Area of triangle POQ=80 Area of Quadrilateral ORSQ= Area of Triangle POQArea of Triangle POS=805=75 dw:1333015750160:dw
 2 years ago

mcnalljjBest ResponseYou've already chosen the best response.0
4/5...OP, not 4/50 P grrr
 2 years ago

RISH_SHARMABest ResponseYou've already chosen the best response.2
see its not given but, when i apply the formula to the PRS triangle, the area formula of a triangle its giving and conforming that prs is a right angled triangle
 2 years ago

MertsjBest ResponseYou've already chosen the best response.1
Made a typo: Area of Quadrilateral ORSQ= Area of Triangle POQArea of Triangle PRS=805=75. That's what it should say.
 2 years ago

baddinlolBest ResponseYou've already chosen the best response.0
Mertsj, you forgot area of PRSQ?
 2 years ago

MertsjBest ResponseYou've already chosen the best response.1
What are you talking about , PRSQ? What is that? dw:1333018214856:dw
 2 years ago

MertsjBest ResponseYou've already chosen the best response.1
What do you think its area is, baddinlol?
 2 years ago

baddinlolBest ResponseYou've already chosen the best response.0
dw:1333018324710:dw
 2 years ago

mcnalljjBest ResponseYou've already chosen the best response.0
He means ORSQ, you wrote POS or PRS is 75
 2 years ago

MertsjBest ResponseYou've already chosen the best response.1
Made a typo: Area of Quadrilateral ORSQ= Area of Triangle POQArea of Triangle PRS=805=75. That's what it should say.
 2 years ago

mcnalljjBest ResponseYou've already chosen the best response.0
PRS = 80, ORSQ = PRS5 = 75 ;) I know what you're saying
 2 years ago

RISH_SHARMABest ResponseYou've already chosen the best response.2
http://www.cambridge.edu.au/education/resource/pageproofs_16_652354.pdf question is here go to exercise 15d
 2 years ago

baddinlolBest ResponseYou've already chosen the best response.0
@Mertsj Area of quad ORSQ = Area of triangle POQ  5
 2 years ago

dpaIncBest ResponseYou've already chosen the best response.0
@RISH SHARMA , do you have the answer? is it 20 cm^2?
 2 years ago

dpaIncBest ResponseYou've already chosen the best response.0
sorry, that is what i meant... why don't you look at it this way.... dw:1333019256794:dw triangle PRS is similar to POQ. so theres a dilation factor of 5. so area of POQ must be 125.
 2 years ago

dpaIncBest ResponseYou've already chosen the best response.0
since PRS is 5, ORSQ is 125  5.
 2 years ago
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