Elements of Geometry and Trigonometry |
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Page 274
... find the area of a square , a rectangle , or a parallelogram . RULE . - Multiply the base by the altitude , and the product will be the area ( Book IV . Prop . V. ) . 1. To find the area of a parallelogram , the base being 12.25 and the ...
... find the area of a square , a rectangle , or a parallelogram . RULE . - Multiply the base by the altitude , and the product will be the area ( Book IV . Prop . V. ) . 1. To find the area of a parallelogram , the base being 12.25 and the ...
Page 281
... area . Or , to find the area of any regular polygon , we have RULE II . - 1 . Square the side of the polygon . 2. Then multiply that square by the tabular area set opposite the polygon of the same number of sides , and the product will ...
... area . Or , to find the area of any regular polygon , we have RULE II . - 1 . Square the side of the polygon . 2. Then multiply that square by the tabular area set opposite the polygon of the same number of sides , and the product will ...
Page 283
... find the area of the sector of a circle . RULE I - Multiply the arc of the sector by half the radius ( Book V. Prop . XII . Cor . 1 ) . RULE II . - Compute the area of the whole circle : then say , as 360 degrees is to the degrees in ...
... find the area of the sector of a circle . RULE I - Multiply the arc of the sector by half the radius ( Book V. Prop . XII . Cor . 1 ) . RULE II . - Compute the area of the whole circle : then say , as 360 degrees is to the degrees in ...
Contents
BOOK | 7 |
Problems relating to the First and Third Books 57 | 57 |
BOOK IV | 68 |
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Common terms and phrases
adjacent adjacent angles altitude angle ACB angle BAC ar.-comp base multiplied bisect Book VII centre chord circ circumference circumscribed common cone consequently convex surface cosine Cotang cylinder diagonal diameter dicular distance divided draw drawn equally distant equations equivalent feet figure find the area formed four right angles frustum given angle given line gles greater homologous sides hypothenuse inscribed circle inscribed polygon intersection less Let ABC number of sides opposite parallelogram parallelopipedon pendicular perimeter perpen perpendicular plane MN polyedron polygon ABCDE PROBLEM Prop proportional PROPOSITION pyramid quadrant quadrilateral quantities radii radius ratio rectangle regular polygon right angled triangle S-ABC Scholium secant segment similar sine slant height solid angle solid described sphere spherical polygon spherical triangle square described straight line TABLE OF LOGARITHMIC tang tangent THEOREM triangle ABC triangular prism vertex