2 Answers

Roam · Answer 1 · 2023-09-03T22:03:07+0000

Step-by-step explanation:

1) The length of a rectangular box is 25 cm annd its breadth is 8 cm. Calculate its area .

= Solution

Given ,

Length ( l ) = 25 cm

Breadth ( b ) = 8cm

Area ( A ) = ?

According to the formula,

A = l × b

= 25 × 8

= 200 cm²

The area of the rectangular box is 200 cm²

2) The radious of a volleyball is 6 cm calculate its volume.

= Solution

Given ,

Radious ( r ) = 6 cm

Volume ( v ) = ?

According to the formula ,

$V = (4)/(3) \pi {r}^(2) \\ (4)/(3) * (22)/(7) * 6 * 6 * 6 \\ = 905.14 {cm}^(2)$

The volume of the volleyball is 905.14cm³

3) A car travels a distance of 300 km in 4 hours. Calculate the speed of the car.

= Solution

Given ,

Distance covered ( s ) = 300 km

Time taken ( t ) = 4h

Speed ( v ) = ?

According to the formula,

$V = (s)/(t) = (300km)/(4h) \\$

= 75 km / h

The speed of a car is 75 km / h .

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