Please submit your concern

Explanation:

Refer to the following figure.

​​​​​​​

As all the sides of the figure are equal,

2 - 2x = x2

∴ x = 21+2 = 2 - 2      ...(rationalising the denominator)

Area of the eight sided figure = Area of the square – 4 × Area of each small triangle

= 2 × 2 - 4 × 12(2 - 2)2

= 4 - 2(6 - 42)

= 8(2 - 1)

82+1 ...(multiplying and dividing by (2 + 1)

Hence, option (d).

Feedback

Help us build a Free and Comprehensive Preparation portal for various competitive exams by providing us your valuable feedback about Apti4All and how it can be improved.


© 2024 | All Rights Reserved | Apti4All