Siow Lin Hoe's answer to Keerthi's Secondary 1 Maths Singapore question.
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Since there are only two information are known and there are 3 variables. Just trial and error to find the answer.
784 = 2 x 2 x 2 x 2 x 7 x 7
From above to form combination that fit the equation for perimeter.
Only 2 (8 + 7) = 30cm.
So the remaining will be form the height, 2 x 7
784 = 2 x 2 x 2 x 2 x 7 x 7
From above to form combination that fit the equation for perimeter.
Only 2 (8 + 7) = 30cm.
So the remaining will be form the height, 2 x 7
Date Posted:
2 years ago
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