Question

40) in Fig. 5, fill the circles with the integers -2,4, 25, and 50, in such a way that there is only one integer in one circle, and the product of the three integers along each line is 1,500 -15 o C Fig. 5 answer please​

Answer 1

Answer:

The length of the tarpaulin can be calculated by dividing its area by its breadth.

Since the extra length of material = 20 cm, the actual length of the tarpaulin will be obtained by adding 20 cm to the length of the tarpaulin.

Radius, r = 6 m

Height, h = 8 m

Slant height, l = √r² + h²

= √(6)² + (8)²

= √36 + 64

= √100

= 10 m

Therefore, the curved surface area = πrl

= 3.14 × 6m × 10m

= 188.4 m2

Now, width of the tarpaulin = 3m

Area of the tarpaulin = 188.4 m2

So, Area of the tarpaulin = width of the tarpaulin × length of the tarpaulin

188.4 m2 = 3 × length of the tarpaulin

⇒ Length of the tarpaulin = 188.4 m2/3

= 62.8 m

Extra length of the material = 20cm = 20/100m = 0.2m

Actual length required = 62.8m + 0.2m = 63m

Thus, the required length of the tarpaulin is 63 m.