Friday
October 24, 2014

Homework Help: geometry regular polygon

Posted by Skye on Sunday, March 6, 2011 at 7:27pm.

a=?
s=10.5cm
A= 19,887.5cm squared

Pentagon

A=asn/2
19,887.5cm=a*10.5*5/2
39775=52.5a
a=757.61cm?
am i correct?

regular nonagon
a=9.6cm
A=302.4cm squared
find perimeter thanks!

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

math - the sides of a polygon have lengths of 2cm,5cm,6cm,4cm,9cm and the ...
a - A rectangle is 3times as long as it is wide the perimeter is 60cm. Find the ...
Geometry - Find the surface area for each of the following Rt. Square Pyramid 6....
CHEMISTRY: URGENT DRBob222 - I thought it was similar so I wrote... x + y = 30cm...
Math - find the perimeter of a regular octagon with sides of 5.5cm.
Algebra - If anyone could please just look these over: The given measures are ...
Technical Drawing - 1. Construct a triangle with dimension 5cm, 6cm and 75 ...
math - draw a 5cm x 5cm grid in your homework book. your task is to break the ...
math - a 5cm by 5cm square is cut from each corner of a rectangular piece of ...
Science - Need help with find area of a cylinder measurement are : 1. dia 3cm ...

Search
Members