A regular 20-gon with sides of length 4 units can be divided into 20 equilateral triangles with sides of length 4 units. The area of the 20-gon is ______. (Give the exact form of the answer.)

Question

A regular 20-gon with sides of length 4  units can be divided into   20 equilateral triangles with sides of length  4 units.  The area of the 20-gon is ______.  (Give the exact form of the answer.)

anonymous · Answer

well calculate the area of one of the triangles then multiply that area by 20

anonymous · Answer

you could just use the formula Area of a twentygon = (Base*height/2)*20

anonymous · Answer

Area of a twentygon = (Base*height/2)*20=160

anonymous · Answer

4*4/2 *(20)= 16/2*(20)= 8*(20)=160