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GRE - Quantitative Reasoning - Geometry

webinar on Higher level geometry min max area (more)

I attended the webinar on Higher level geometry min max area.Are the problems solved the standard results for any problem or will it vary?

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webinar on Higher level geometry min max area (more)

I attended the webinar on Higher level geometry min max area.Are the problems solved the standard results for any problem or will it vary?

Be the first person to answer the question!

webinar on Higher level geometry min max area (more)

I attended the webinar on Higher level geometry min max area.Are the problems solved the standard results for any problem or will it vary?

Be the first person to answer the question!

What is the length of a diagonal of a rectangle that has width 5 and perimeter 34 ? (more)

What is the length of a diagonal of a rectangle that has width 5 and perimeter 34 ?

perimeter = 2(length + width)

34 = 2(length + 5)

length = 12

diagonal of a rectangle (from pythagorus theorem) = (length2 + width2)1/2 = (122 + 52)1/2 = 13

 

A rectangular floor 18 feet by 10 feet is to be completely covered with carpeting that costs X dollars per square yard. In terms of X, how many dollars will the carpeting cost ? (1 yard = 3 feet) (more)

A rectangular floor 18 feet by 10 feet is to be completely covered with carpeting that costs X dollars per square yard. In terms of X, how many dollars will the carpeting cost ? (1 yard = 3 feet)

(A) 20x
(B) 28x
(C) 60x
(D) 180x
(E) 540x

length of the floor = 18 ft = 6 yards

width of the floor = 10 ft = 10/3 yards

area of the floor = 6*10/3 sq yards = 20 sq yards

cost of carpeting = x per sq. yard

total cost = 20x dollars