How to find the length of a side

Practice Questions

ISEE Upper Level (grades 9-12) Quantitative Reasoning › How to find the length of a side

Questions
5
1

A regular pentagon has sidelength 72; the perimeter of a regular hexagon is 80% of that of the pentagon. Which is the greater quantity?

(A) The length of one side of the hexagon

(B) 50

2

A regular octagon has perimeter one meter. Which is the greater quantity?

(A) The length of one side

(B) 125 millimeters

3

Right_triangle

A regular decagon has the same perimeter as the above right triangle. Give the length of one side.

4

A regular octagon has twice the perimeter of a regular pentagon. What is the ratio of the sidelength of the octagon to that of the pentagon?

5

A regular octagon has perimeter one mile.Which is the greater quantity?

(a) The length of one side

(b) 880 feet

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