Four equilateral triangles are described on the four sides of a rectangle with perimeter 12 cm. If the sum of the area of four triangles is 10 
cm2 ,what is the area of the rectangle?
(a)
5cm2
(b)
8 cm2
(c)
9 cm2
(d)
6.75 cm2
Four equilateral triangles are described on the four sides of a rectangle with perimeter 12 cm. If the sum of the area of four triangles is 10 cm2 ,what is the area of the rectangle?
(a)
5cm2
(b)
8 cm2
(c)
9 cm2
(d)
6.75 cm2
Question ID - 50145 | SaraNextGen Top Answer
Four equilateral triangles are described on the four sides of a rectangle with perimeter 12 cm. If the sum of the area of four triangles is 10 cm2 ,what is the area of the rectangle?
(a)
5cm2
(b)
8 cm2
(c)
9 cm2
(d)
6.75 cm2
|
Four equilateral triangles are described on the four sides of a rectangle with perimeter 12 cm. If the sum of the area of four triangles is 10 |
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|
(a) |
5cm2 |
(b) |
8 cm2 |
(c) |
9 cm2 |
(d) |
6.75 cm2 |
1 Answer
127 votes
Answer Key / Explanation : (b) -
Length = 
breadth = 
Then, 
Sum of areas of the four triangles
= 
Therefore, 
Length = 4 cm, breadth = 2 cm.
Area of rectangle = 8 sq. cm.
127 votes
Answer Link
127