Math, asked by kavyavarotaria, 8 months ago

The cross-section of a piece of metal 2 m in length is shown in
the adjoining figure.
Calculate : (i) the area of its cross-section;
(ii) the volume of piece of metal;
(ii) the weight of piece of metal to the nearest kg,
if 1 cm3 of the metal weighs 6.5 g.​

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Answers

Answered by parameswari0580
2

Answer:

i)162 sq cm

ii)162 cu cm

iii)1053 g

Answered by yadavshivika1
9

Step-by-step explanation:

Area of rectangle = l x b

= 12 x 13

= 156 cm

Area of triangle = 1/2 x base x height

= 1/2 x 13 x 4

= 26 cm

Total area of cross section = 156+26

= 182cm^2

2m = 200 cm

Volume of piece of metal = 182cm^2 x 200cm

= 36400cm^3

1cm^3 of weight of metal = 6.5g

36400cm^3 of weight of metal = 36400 x 6.5/1000

= 236.6 kg

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