Question

A roller of height 10 m and radius 0.35 m is used to level a lawn. Find the area (in sq. m) it can level in one full rotation.​

Answer 1

..QUESTION..

A roller of height 10 m and radius 0.35 m is used to level a lawn . Find the area ( in sq. m ) it can level in one full rotation.

..ANSWER..

Given ,

ㅤㅤㅤ➪ height of roller = 10 m

ㅤㅤㅤ➪ Radius of roller = 0.35 m

★ Hint* - The role is a cylinder

•°• To find the area leveled in 1 rotation

ㅤㅤ➪ we are to find it's C.S.A

•°• According to the Question ,

ㅤㅤㅤ➪ C.S.A of cylinder

ㅤㅤㅤ➪ 2 π r h

ㅤㅤㅤ➪ 2 × 22/7 × 0.35 × 10

ㅤㅤㅤ➪ 44/7 × 3.5

ㅤㅤㅤ➪ 44 × 0.5

ㅤㅤㅤ➪ 22

•°• area leveled in 1 rotation ➪ 22 m²

_____________________

Give a look here ,

• perimeter of square
• ➪ 4s
• area of square
• ➪ s²
• Perimeter of rectangle
• ➪ 2 ( l + b )
• area of rectangle
• ➪ l × b
• circumference of circle
• ➪ 2 π r
• area of circle
• ➪ π r²

ㅤㅤㅤ꧁ ʙʀᴀɪɴʟʏ×ᴋɪᴋɪ ꧂

ㅤㅤㅤ