...POLYGONS DEFINITIONS 210. A Proportion is a statement that two ratios are equal. 211. The statement that the ratio of a to b is equal to the ratio of c to d is written a_£ b~d 212. In the proportion - = -, we call a the first term, b the 0 Cd second term,...

...formed by two equal ratios a : b and с ; d may Ъе written in three ways : (1) a : b = с : d (read, the ratio of a to b is equal to the ratio of о to d). (2) a : b : : с : d (read, a is to b as с is to d), a and d are the extremes, b and с...

...lines that form the sign of equality. The proportion a : b = с : d, or a : b : : с : d, is read, ' the ratio of a to b is equal to the ratio of с to d,' or 'a is to b as с is to d.' 473. In a proportion, the first and fourth terms are called...

...equation whose members are ratios. Thus, о : 6 = с : d, or - = li a is a proportion, which is read, the ratio of a to b is equal to the ratio of с to d. The same proportion is sometimes written a:b::c:>l, which is read, a is to 6 as с is to d....

...proportion when the ratio of the first to the second is equal to the ratio of the third to the fourth. A proportion may be written in either of two ways;...d, the equality may be indicated by either of the following expressions: ld — = — , or a : b : : c : d. Either of them may be read a is to b as c...

...: ac — = — ; a:b::c:d; a : 0 = c : a. 6 d This proportion is read "a is to 6 as c is to d"; or "the ratio of a to b is equal to the ratio of c to d." 312. The four quantities, a, 6, c, and d, are called the terms of the proportion. 313. The first and...

...extremities of the lines that form the sign of equality. The proportion a:b = c:d, or a:b::c:d, is read, ' the ratio of a to b is equal to the ratio of с to d,' or ' о is to b as с is to d.' 389. In a proportion, the first and fourth terms are called...

...which are as 5 : 3 : 2. 212. A Proportion is a statement that two ratios are equal. The statement that the ratio of a to b is equal to the r,atio of с to d is written either а с , , — = -, or a : о = с : a. о а This proportion is read " a...

...which are as о : 3 : 2. 184. A Proportion is a statement that two ratios are equal. The statement that the ratio of a to b is equal to the ratio of с to d is written either а с , ., — = -, or а: b = c: a. bd This proportion is read " a is to...

...lines that form the sign of equality. The proportion a : & = c : d, or a : b : : c : d, is read, ' the ratio of a to b is equal to the ratio of c to d,' or 'a is to 6 as c is to d.' 473. In a proportion, the first and fourth terms are called the extremes,...