Plz solve question 1and 4

Plz solve question 1and 4 3 AREAS YQkUMES A metallic sheet is of rectangular shape with measurements 4B x 36 crn. From each one of Its corners square of e cm is cutoff. An open box is made of the remaininp sheet. What is the volume of the box ? 5120 cm A 4 cm Cube Is cut into 1 cm cubes. Calculate the total surface aree of the smell cubes. What is the ratio Of surface area of small cubes to that of the large cube 7 The edges of three metallic cubes are in the ratio of 3 : 4 5. These cubes are recast into a single cube whose diagonal is 12€3 cm. Find the edges of the three cubes. A rectangular sheet of paper 44 cm x 1B cm is rolled along its length and a cylinder is 2772 cm' formed. Find the volume of the cylinder. The ratio between the curved surface are and the total surface area of a right circular cylinder is 1 : 2. If the total surface area is 616 cm3, find the volume of the cylinder. 1078 The difference between outside and inside surface of a cylindrical metallic pipe 14 cm long is 44 sq. cm. If the pipe is made of 99 cubic cm of metal, find the outer and inner radii of the pipe. A milk tanker cylindrical in shape having diameter 2 metres an length 4.2 metres supplies milk to the two booths in the ratio 3 : 2. One of the milk booths has a rectangular vessel having base areas 3.96 sq. m and the other has a cylindrical vessel having diameter 2 metres. Find the level of milk in each of the two vessels. He ht of milk in rectangular vessel = 2m ; Height Of milk in cylindrical vessel = 1.68 m The diameter Of a roller 120 m long is 84 cm. If it takes 500 complete revolutions to level a play ground, find the cost of levelling it at the rate of Rs. 2 per sq. metre. A conical tent is required to accommodate 7 persons. Each person requires 22 sq. dm. breadth. Find the vertical height and the

the paper is rolled so that its length will be equal to the circumference.

l=44cm;h=18cm

44cm=2*22/7*r

r=44*1/2*7/22

r=7cm

volume of the cylinder=22/7*r2 *h

volume=22/7*7*7*18

volume=2772cm3

 I hope this helps u buddy

  • 12
What are you looking for?