If twice the area of a smaller square is subtracted from the area of alarger square, the result is 14 cm 2. However, if twice the areaof the larger square is added to three times the area of the smallersquare, the result is 203 cm 2. Determine the sides of the twosquares.
Let the area of the smaller square be x 2 cm 2 .
Condition 1: If twice the area of a smaller square is subtracted from the area of a larger square, the result is 14 cm 2 .
Then the area of the larger square = (14 + 2x 2 ) cm 2
Condition 2: If twice the area of the larger square is added to three times the area of the smaller square, the result is 203 cm 2 .
⇒ 2(14 + 2x 2 ) + 3 x 2 = 203
28 + 4x 2 + 3 x 2 = 203
7x 2 = 175
x 2 = 25
x = ± 5 cm
Therefore the sides of smaller square is 5 cm.
And the sides of the larger squares is 14 + 2× 5 2 = 14 + 50 = 64 cm.
The sides of the two squares is 5 cm and 64 cm.
Checking:
a) 64 - 2(5 2 ) = 64 – 250 = 14
b) 2(64) + 3(5 2 ) = 128 + 75 = 203.
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