ratios & proportions
If 25, 35, x are in proportion, what is the value of x?
the area of a rectangle is 540 m^2. its length is 36m. What is its perimeter?
102 m
the length and width of a rectangular park have a ratio of 5:3. Its perimeter is 128m. What is it's area?
960 m^2
The angles of a triangle are in ratio 2:3:5. What is the measure of the largest angle?
80 degrees
The area of a triangle is 630 cm^2 and its length is 35 cm. What is its perimeter?
106 cm
A rectangle and square are of equal area. The side of the square is 18cm. What is the length of the rectangle if it's width is 12cm?
27cm
If 35 envelopes costs $87.50, how many envelopes can you purchase for $315?
126 envelopes
the total cost of flooring a room at 85$/m^2 is $5100. If the length of the room is 8m, what is it's width?
7.5 m
if the length and width of a rectangle are doubled, then its perimeter is:
a) tripled
b) halved
c) doubled
d) none of the above
c
The weight of 8 milk cartons is 72 pounds. What is the weight of 18 of the same milk cartons?
162 pounds
A floor is 7m long and 5m wide. A square carpet of sides 4m is laid on the floor. What is the area of the floor not carpeted?
19 m^2