1. Denomination. Make AC=a, AD=b, AB=x, then will BC=b−x.
2. Equation. 〈 math 〉〈 math 〉 and substract∣ing xx.
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1. Denomination. Make AC=a, AD=b, AB=x, then will BC=b−x.
2. Equation. 〈 math 〉〈 math 〉 and substract∣ing xx.
3. Reduction. 〈 math 〉〈 math 〉; and adding 〈 math 〉〈 math 〉; and substracting 〈 math 〉〈 math 〉; and dividing by 〈 math 〉〈 math 〉.
4. The Effection or Construction is like the former, and so will be manifest only by inspecting that Scheme.
5. The Arithmetical Rule. From the square of the given sum substract the square of the given side, and divide the Re∣mainder by double the given sum; and youll have the other side, and substracting that from the given sum, you have the Hypothenusa also. E. g. let one side be 15, and the sum of the other two 45.