Question

1) The radius of metalie sphere is 9 cm It was melted to
diameter 4mm find the iength of wire
2) Find the height and area of an equalateral triangleos
3) Find the length of side and perimeter of an equilatera
height 3 cm
4) Prove that ratio of areas of two triangles is equal to
corresponding base and hight
5) In Triangle PQR point sis midpoint of side QR PQ-11
QR
6) find the surface area and volume of matalie sphere of​

Answer 1

Answer:

Step-by-step explanation:

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The radius of a metallic sphere is 9 cm. It was melted to make a wire of diameter 4 mm. Find the length of the wire im meters

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ANSWER

According to given question,

Let length of wire be l,

Diametre of wire is 4mm,

so, radius will be 2mm

Volume of metallic sphere = volume of cylindrical wire

⟹

3

4

π(9cm)

3

=π(2×10

−1

cm)

2

l

⟹l=24300cm=243m

Answer 2

Step-by-step explanation:

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