Mathematics Question and Solution

By Ogheneovo Daniel Ephivbotor
21st May, 2025

Let a be the side length of the big inscribed square.


Let b be the side length of the bigger inscribed square.


Therefore;


27 ~ b

a ~ 64


Cross Multiply.


ab = 27*64

b = (1728)/a units.


Notice.


(a+b) units is the side length of the biggest inscribed square.


a+b = a+(1728)/a

= (a²+1728)/a units.


Calculating a.


((a²+1728)/a)² = ((1728)/a)²+64²


((a⁴+3456a²+2985984)/a²) = (2985984/a²)+4096


a⁴+3456a²+2985984 = 2985984+4096a²


a⁴ = 4096a²-3456a²

a² = 640

a = √(640)

a = 8√(10) units.


It implies (a+b) is;


(a²+1728)/a

And a = 8√(10) units.


= ((8√(10))²+1728)/(8√(10))


= (640+1728)/(8√(10))


= 2368/(8√(10))


= 296/√(10)


= ⅒(296√(10)) units.


It implies;


x, area of the biggest inscribed square is;


x = (a+b)²

x = (⅒(296√(10)))²

x = ⅒(87616) square units.

x = 8761.6 square units.

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