OpenStudy (anonymous):

If the angles of a quadrilateral are in the ratio of 2 : 4 : 5 : 7, then its angles measure: A. 36,58,125,141 B. 40,80,100,140 C. 48,72,96,144 D. 48,52,174,86

5 years ago
hartnn (hartnn):

the sum of angles of a quadrilateral = ?

5 years ago
OpenStudy (anonymous):

sorry i don't know

5 years ago
hartnn (hartnn):

ok, its 360

5 years ago
OpenStudy (anonymous):

B, how?

5 years ago
hartnn (hartnn):

so let the angles be 2x, 4x, 5x and 7x sum = 360 form an equation

5 years ago
OpenStudy (anonymous):

okk, thanx guys (:

5 years ago
hartnn (hartnn):

5 years ago
OpenStudy (anonymous):

quad·ri·lat·er·al [kwòddri láttərəl, kwòddri láttrəl] noun (plural quad·ri·lat·er·als) four-sided figure: a two-dimensional geometric figure with four sides adjective four-sided: with four sides an·gle [áng g'l] noun (plural an·gles) 1. space between diverging lines: the space between two diverging lines or planes, or a measure of the space 2. figure formed by diverging lines: a figure formed by two lines diverging from a common point or two planes diverging from a common line 3. mathematics Same as solid angle 4. part that sticks out: a projecting part of something 5. position for viewing something: a position from which somebody can look at something a sculpture seen from three angles 6. way of considering something: a way of looking at a situation Consider the matter from this angle. verb (past and past participle an·gled, present participle an·gling, 3rd person present singular an·gles) 1. transitive and intransitive verb place something, or be placed, obliquely: to direct or place something obliquely, or move or be placed obliquely 2. transitive verb present something with bias: to present something with a particular audience in mind or in order to express a particular point of view 3. intransitive verb change direction sharply: to turn in a sharply different direction [14th century. Directly or via French < Latin angulus "corner"] an·gle [áng g'l] (past and past participle an·gled, present participle an·gling, 3rd person present singular an·gles) intransitive verb 1. fish with rod: to fish with a hook, line, and rod 2. attempt to get something: to attempt to obtain a compliment or an advantage (informal) [ Old English angul "fishhook" < Indo-European, "to bend, hook"]

5 years ago
hartnn (hartnn):

@vladislavchazov could u form an equation ?

5 years ago
OpenStudy (anonymous):

@TuringTest i am really sorry , i am new to this OS

5 years ago
OpenStudy (anonymous):

yep (: i did it 2x+4x+5x+7x=360

5 years ago
hartnn (hartnn):

now u can find x from here

5 years ago
OpenStudy (anonymous):

i found thanx champ

5 years ago
hartnn (hartnn):

welcome ^_^

5 years ago
OpenStudy (anonymous):

@hartnn don't act smart bro...

5 years ago