Thursday

April 17, 2014

April 17, 2014

Posted by **Emily** on Monday, June 4, 2007 at 8:36am.

So I tried dividing the pentagon into triangles...but then I came up with the answer 24.41?

I know thats not right. Can you hLep me at all?

I will be happy to critique your work. For each triangle, you have a bse of 5.8 ft, and a vertex angle of 72 deg

That means the height of the triangle is 2.6*tan54. Then you know the area (1/2 base*height), and you finally know the total area of the pentagon (five times that area).

I get about twice what you got

**Related Questions**

geometry - A regular heptagon has an apothem of approximately 6.5 ft and a ...

MATH - A carpenter wants to be sure that the corner of a building is square and ...

math :) - 1. A toy airplane is 10 inches long.If the actual airplane is 75 feet ...

Math - one base of a trapezoid is 10 ft. long, the altitude is 4 ft., and the ...

math - A trapezoid has bases of 15 ft. and 9 ft. and a height of 8 ft. Find its ...

math - A courtyard is shaped like a square with 250-ft-long sides. What is the ...

Math--Area - Find the area of each regular polygon to the nearest tenth. Octagon...

geometry - One equilateral triangle has sides 5 ft long. Another equilateral ...

physics - For the step ladder shown in the Figure, sides and are each ft long ...

math - How long is a ladder whose base is 3 ft from a wall and makes an 80° ...