This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1846 Excerpt: ... roofs of a house of which the eaves are of the same height, form a right angle at the top. Now, the length of the rafters on one side is 10 feet, and on the other 14 feet: what is the breadth of the house? Ans. 17.204 ft. 4. What would be the width of the house, in the last example, if the rafters on each side were 10 ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1846 Excerpt: ... roofs of a house of which the eaves are of the same height, form a right angle at the top. Now, the length of the rafters on one side is 10 feet, and on the other 14 feet: what is the breadth of the house? Ans. 17.204 ft. 4. What would be the width of the house, in the last example, if the rafters on each side were 10 feet? Ans. 14.142 ft. 5. What would be the width, if the rafters on each side were 14 feet? Ans. 19.7989 ft. 29. If the hypothenuse and one side of a right-angled triangle are known, how do you find the other side? Square the hypothenuse and also the other given side, and take their difference: extract the square root of this difference, and the result will be the required side. EXAMPLES. 1. In the right-angled triangle ABC, there are given AC--50 feet, and AB = 40 feet; required the side BC. We first square the hypothenuse and the other side, after which we take the difference, and then extract the square root, which gives BC = VOO = 30 feet. Operation. 50 = 2500 40 = 1600 Diff. = 900 2. The height of a precipice on the brink of a river is 103 feet, and a line of 320 feet in length will just reach from the top of it to the opposite bank: required the breadth of the river. Ans. 302.9703 ft. 3. The hypothenuse of a triangle is 53 yards, and the perpendicular 45 yards: what is the base? Ans. 28 yds. 4. A ladder 60 feet in length, will reach to a window 40 feet from the ground on one side of the street, and by turning it over to the other side, it will reach a window 50 feet from the ground: required the breadth of the street. Ans. 77.8875ft. AREA OF THE SQUARE. 30. How do you find the area of a square, a rectangle, or a parallelogram? Multiply the base by the perpendicular height, and the product will be the area. n 1. Required the area of the ...
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Add this copy of Elements of Drawing and Mensuration Applied to the to cart. $58.41, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2016 by Palala Press.
