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To make it more simple, it is twice the area of the middle square minus the area of the small square, ie 2×10^2-2^2=196
a = 2 + b(b+2)² + b² = 10²b² + 4b + 4 + b² = 1002b² + 4b - 96 = 0∆ = 16 + 768 = 784√784 = 28-4 + 28 /4 = 6b = 6 > a = 8A = (6+8)² = 196 cm²
Use Paithagorus theorem and common sense.8+6=14 14x14=196 easy
Thank you for your comment.This video gives a solution that even an elementary school student can solve. The solution using Pythagoras theorum would be shown in the next video.
This is easy way to get answer means 14*14=196
100 (square inside is also blue)
exactly
Thank you 😊
You're welcome 😊
To make it more simple, it is twice the area of the middle square minus the area of the small square, ie 2×10^2-2^2=196
a = 2 + b
(b+2)² + b² = 10²
b² + 4b + 4 + b² = 100
2b² + 4b - 96 = 0
∆ = 16 + 768 = 784
√784 = 28
-4 + 28 /4 = 6
b = 6 > a = 8
A = (6+8)² = 196 cm²
Use Paithagorus theorem and common sense.
8+6=14
14x14=196 easy
Thank you for your comment.
This video gives a solution that even an elementary school student can solve. The solution using Pythagoras theorum would be shown in the next video.
This is easy way to get answer means 14*14=196
100 (square inside is also blue)
exactly