Elitmus
Exam
Numerical Ability
Geometry
A HEXAGON IS FORMED ABCDEF WHICH PERIMETER 36cm. A POLYGON IS FORMED BY JOINING THE POINTS AE &BD . FIND THE AREA OF THE POLYGON ABDE?
Read Solution (Total 10)
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- A regular hexagon consist of 6 equilateral triangle. Each of side 6 cm.
So the area of 1 equilateral triangle is = ¼(√3 a2) = 9√3 cm2
The figure formed by joining polygon ABDE consist of 2 equilateral triangle and 4 half equilateral triangle
Which employs area of 4 equilateral triangle.
So, The area of polygon ABDE = 4*(area of equilateral traingle)
= 4* 9√3 = 36√3 cm2 Answer
- 8 years agoHelpfull: Yes(14) No(0)
- AB=36/6 =6
AE=BD= 6√3
area of rectangle ABDE = 6*6√3 = 36√3
- 8 years agoHelpfull: Yes(5) No(2)
- ABDE is a rectangle. So, Area = AB x BD. From hexagon AB=BC=CD=DE=EF=FA=36/6=6cm. BD^2=BE^2-DE^2. Here BE = 12cm and DE = 6cm So BD = 6√3cm now area of ABDE = 6 x 6√3 = 36√3 sq cm.
- 8 years agoHelpfull: Yes(4) No(2)
- Area of rectangle=4*[root(3)/4]*sqaure(6)
- 8 years agoHelpfull: Yes(2) No(0)
- its 8.485
reason is when hexagon is make a polygon then two sides are equal in a trinangle the third side is like a hypotenuse then we use the formula p^2 + b^2=h^2 - 8 years agoHelpfull: Yes(0) No(3)
- length of AE=BD= 2*6=12. length of AB=ED=6. Area of ABDE=12*6= 72
- 8 years agoHelpfull: Yes(0) No(7)
- all sides are equal. so it is square. area of square is s*s=6*6=36.
- 8 years agoHelpfull: Yes(0) No(5)
- plzzzzzz friends can u tell me how can AE=12
- 8 years agoHelpfull: Yes(0) No(2)
- 36*sqrt(3)
- 7 years agoHelpfull: Yes(0) No(0)
- ABCDEF is a regular polygon,hence it consist of 6 equi. triangles.Let O be the center of the hexagon and also the polygon ABDE. AB=ED=OE=OC=6(perimeter of hexagon is given),since OED=OAB are equi. triangle.
EB is a diagonal of polygon ABDE and it comes out to be 12.By pyth. theorem AE=6root3.
Area=AE*AB=36root3 - 7 years agoHelpfull: Yes(0) No(0)
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