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No 371 Prob. 21. p. 272
The diameter of a globe
being given; to find the
superficies.
Rule.
Find the circumference of a
great circle upon the globe
by article 356, and multiply
the circumference by the diameter.
No 372 Prob. 21. p. 273.
The diameter, or semidiameter
of a globe being
given, to find the superficies.
Rules
Multiply 3,1416 by the
square of the diameter. Or
2. Multiply the square of
the semidiameter by 88, &
divide the product by 7.
No 373. Prob. 22. p. 274
To find the superficies of a
segment of a globe, made
by the section of a plain.
Rule.
Multiply the circumference
of the globe by the
height of the segment.
No 375 Prob. 23. p. 276.
To find the solidity or content
of a cube.
Rule
Multiply the square
of the side by the side.
No 376. Prob. 24. p. 277
To find the content of a
prism.
Rule
Multiply the area of the
base by the height.
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