SOLUTION: rod of 20 m length has an isosceles triangular base, where the equal sides are 12 cm each.of the included angle in the base is 40°,calculate:
a)thearea of the cross-section.
b)T
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Question 1086357: rod of 20 m length has an isosceles triangular base, where the equal sides are 12 cm each.of the included angle in the base is 40°,calculate:
a)thearea of the cross-section.
b)The volume of the mental rod.
c)the mass of the mental rod,if it is made of copper ,whose density is 9000kg/m3
Found 2 solutions by addingup, Fombitz:
Answer by addingup(3677) (Show Source): You can put this solution on YOUR website!
so we have a side-angle-side triangle, or SAS. To find the area:
Area = (ab(sinC))/2 = (12 x 12 x sin(40))/2 = (144 x 0.6428)/2 = 46.28
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
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and
and
So then,
Convert the area to ,
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