You are watching: Two sides of a triangle are 4m and 5m in length
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the quation requirements the angle and also minutes however i don`t know exactly how to calculation the minutes. May you please display the formula action by step.
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The mesurements the triangle a = 4m,b = 5m and c = 7m
Solve the triangle by making use of SSS rule
cosA = (b2 + c2 - a2)/2bc
cosA = (52 + 72 - 42 )/2(5)(7)
cosA = (25 + 49 - 16)/70
cosA = 58/70
A = cos-1(58/70)
A = 34.04°
1 level = 60 minutes
To convert the levels in minutes just multiply through 60.
A = 34.04*60
A = 2042.4"
cosB = (c2 + a2 - b2)/2ca
cosB = (72 + 42 - 52 )/2(7)(4)
cosB = (49 + 16 - 25)/56
cosB = 40/56
B = cos-1(40/56)
B = 44.41°
B = 44.41*60
B = 2664.6"
The amount of angles in traingle = 180°
C = 180 - (A + B)
C = 180 - (34.04 + 44.41 )
C = 180 - 78.45
C = 101.55°
C = 6093"answeredAug 14, 2014by davidExpert you re welcome log in or it is registered to add a comment. associated questionsCalculate the area that the triangle 7m 4maskedOct 1, 2016in ALGEBRA 1by sheilabRookiethe-angles-of-a-triangle 1. Find the area that a triangle- shaped ar with political parties of 213.1 m and also 249.5 m...askedJul 17, 2014in TRIGONOMETRYby anonymoustrianglestrigonometryangles how do you usage the regulation of cosines to deal with a triangle v two political parties given and also one angle.askedNov 22, 2013in TRIGONOMETRYby dkinzApprenticetrigonometryangles resolve the best triangle presented in the number for every unknown sides and angles.askedJan 13, 2015in TRIGONOMETRYby anonymousright-angle-triangle just how would you occupational out a cylinder with the radius that 55cm and also the size of 1.5maskedFeb 19, 2014in GEOMETRYby homeworkhelpMentorvolume-of-a-cylinderradius-of-a-cylinder what is the interior and exterior angles of a continual polygon through 8 sidesaskedNov 26, 2013in GEOMETRYby angel12Scholargeometric-shapesinterior-and-exterior-angles determine the size of the hypotenuse because that a appropriate triangle with height of 12 and also length the 5.askedMar 1, 2014in TRIGONOMETRYby harvy0496Apprenticehypotenuse-of-right-triangleheight-of-a-triangle a cone has a circular basic of radius 5m and also vertical height of 12m. Calculation the slanted heightaskedFeb 21, 2014in GEOMETRYby angel12Scholarcircumference-of-a-circle What is the area the a pentagon through sides of length 15, 20, 27, 24 and 20 units?askedMar 4, 2014in GEOMETRYby chrisgirlApprenticearea-of-a-pentagonpentagon-side-lengths What is the perimeter that a triangle v sides that 15 cm, 18 cm, and 19 cm, and also a elevation of 12 cm?askedDec 3, 2013in GEOMETRYby angel12Scholarperimeter-of-a-triangle find the perimeter that a triangle with sides 12 inches, 9 inches, and also 15 inchesaskedDec 3, 2013in ALGEBRA 2by skylarApprenticeperimeter-of-a-triangle settle the best triangle displayed in the number for every unknown sides and also angles.askedJan 13, 2015in PRECALCULUSby anonymousright-angle-triangle uncover the area the the triangle having the indicated angle and sides. C = 120o , a = 4, b = 6askedJan 23, 2015in TRIGONOMETRYby anonymousarea-of-triangle usage vectors to uncover the internal angles the the triangle with the provided vertices.askedJan 26, 2015in TRIGONOMETRYby anonymousinterior-angles-of-vectorstriangle What is the length of the hypotenuse that a right triangle with leg lengths the 21 inches and also 28 inches?askedNov 13, 2013in ALGEBRA 1by johnkellyApprenticehypotenuse-of-right-trianglesimplify-expression equipment of an slope triangle with two political parties equal.askedMar 11, 2014in TRIGONOMETRYby angel12Scholartrianglessolving-triangles amount of the internal angles the polygons through 7 sidesaskedNov 26, 2013in GEOMETRYby futaiScholarinterior-angles find the area of the triangle having actually the suggested angle and also sides.askedMay 16, 2019in TRIGONOMETRYby anonymouslaw-of-sines What would the size of the sides of a rectangle it is in if the perimeter and area room 72?askedDec 9, 2013in GEOMETRYby johnkellyApprenticeperimeter-of-a-rectanglearea-of-a-rectangle The lengths the the sides of a triangle space y,y+1 and 7 cms.askedJun 18, 2014in ALGEBRA 1by anonymousperimeter-of-a-triangle