Download BASIC MATHS IN SIMPLE WAY and more Exercises Mathematics in PDF only on Docsity!
43 Uncdlev-standing Elementary ee ¥, S E 0 O es | ¥ Measem'g line segments : segment 1s cL xe portion of a fae > x The dishnee between two_enc points o Sf a _frne_ segment 1's called Length, 5 alec addition mat compare lengths eee’: [tL he same javbial point " pF ; ; | -2 ox eo S- . . : B . —_ One fill turn of the hand =! : Ye voluhon _ i == : —#_ A_tight_ angle. = th vevnlubion i | ——~ ght angle = 12. vovolutinn —____—~ = Se. pYolvac Lor to Meas pro the f ial Ves Magy | C | , in degrers f an angle d 72. © Si 4\ | } Fy” work | 360) 270° a J | Ex: 5.1 | j clisadvantage: 1” coor : Whats ee by more. observation _ bine , Sol: Tove are chances of etror due lo | | improper Yewing— _ ey “D. Why is it betler to_us divider. lhan_a 4 _ _vvler, while measuring Leng th of Line Segment P- Gol: Td ig bether to use a cfiviole_ than; — Ja volerv, becouse thie fness of the tler— _may_Cavs e— difficulties in_veoding off +7 4 the feng th. However. sdinidor gives. tp I aecvryake __ measvremenl 2) + 3. Dow any-line ieegmanhs sey ABs ___Toke any point C_lying_in_ between A 9B measure He length. cof AB, BC: AC «Ts —— | AB+ Act ce? co. _ — ENotes-Jf A; Bic ave: any. three _ pointe er ona fino Pointe ona [ho curk - | ——|| | ssf | AG -: 6 wnrhs Ajeet —. AG=AD+ DG ; b6ounils = 3 units. + Bounits —_ bonilss bunils — f.e AD=-DG “Dis the_mikpomls_of AG — 6. l } Bis He mic pointof Ac §¢ is He mid point_ef BD, where A,B, ¢,D leona straight line, Say why AB= CD? - EBs the mice poinl of. AC. AB=Bc — lf] i Ic is fhe mike poink of BD 4. Bo tad A tt 2D lot | BC= cD —@ From €guation Ds i) A B= CD 2 A B Ce 2D ‘ Drow five. rm anplias measure thei Sides +Check_'a Sach_case_,jf the sum - of length af any two. sicles i always fess thong the Hire side _— 0) = ABTACS ae Be Cicer iis ie Ee pr. classmate (Se A __PQ#PR Seg, 3+ 3.6 i : tT tl 6-5 >3 to 4e70_angla: An angle whos em ensue Po RR classmate i Baten ON || ae | ‘ ®) “angle or 180° | | | Fraction > 482° =. 1 i 36° 2 it i L128 ! [ G eeues || Ned i p) ye I | $ ol: | When hour han 902s from Ibo? chek _ - L wise, tl will yotate by Ix, _t oP. At_or'g. =. ; [Sivwy Se ks 8 - | [eS e Bus a i) 7 to_1lo | sol When eur head goes “7 to.lO clack wise it will vetate by | rghbangle ov a9) . N ~
\ ! i 4» wy _| 6S 6) 2.408 PB Pp gol: When. We hour hand ef check 9 oes ___ from_2.402 thea number of rip) | angle _tuyned will be}, a — ot \ I | | WO sy Mhen the four Fone. ” | ated, ny a we often lO tal thea the runiber: ghL angle tyuyned wil 62 one- Fe | od I> pT A aN od VY \ 3} 4 CO. 12 to 4 When the beur hand of clock goes Yom 12 to 4 then the number of right angle lurned will be thyee ) 2 2 bo 6 from _| 2 to 6 then the _number of - right angle: torned. “will be. two. (9 pe a eee Fg as I ae. a You. _shyrl_ Se — | of © a). ‘Sout fitnen elochize. lo ssa) p Chasen, When the hour hand of clock goas | How. mony night congle. do you make f Ir { — _—elsereat Date > [When_we wilt shat facing South § by, | bo foce north, then the number of y+; vl pacglect formed. is two _ 7 Where will fe hour. Band. fof a Sleek _ _ _ step rk starts - oot 2 a). fron be G. tom 4h rough _lvig at eet ~ cole — i , 1] 12 . a” va) 7 \ | — i 7 ON al a | AL—+4 3 _ 2 sot | = Fy a _— 4 ZZ = _——— = | \ a k ee 4 76 vA 7 When. the: Roe Lon -of 0 a. a cet | from 2 & jhata De heh agit pclae 20 oleck St el frem_l0 - 5 bnins Keough Bright Le = ; angle. — eee | _ | {ikon he fev hd coed 10g | bmn TA roug 43 right - angle them jo will ste pat _7 ; df), from 1 Glurns trough 2slraight_orgle sol. 7 —— ——_] zie 74 Fd 7 3. = ¢ When the "hour honk of clock tum two Straight ang & Stowe at To r Clock | Match the following . ~ Straight angle Ce) al less than onefu ~L Right angle CL) revo btoa ~t) ‘Acute ang/ Ca) i) More than half Yeretibeo ; ey, Obivse angle Co)c) Hof af revelation ____ “~ Reflex angie COIL) Rotween tft revalabas— a i e) One complete rewoletion— __classmate. ? | { ) as 2 &) [ = a Measvve ef angle 16 Aegree H We Wil vse protractor for an anf *| to Measure | | L ‘Whot 1S mearsvre of (i) "GFL angle > | (ii? Straight angle P sal JQOO = ° WD 1g0e a 2. Soy Tue or false 0). The measure _, oF Acute apy le <90° [+1 - 7) ) ‘The measire af obieae were en BY | i} The measore_af reflex-onglo > ix [4.7 _ The measure-of 2omp lle oatsnncun ay : STEM< A= 63°5 m< R= 350 po ~ |: LAX mp Cr7z Z ee ee | > the angle give? Sag a) | XS et \ ras Jas n B3 = \ — F irst. estimate § then measure. | — —— aif 5. Which angle fesa larg e.measure- > (id) — 
