Math, asked by surenderpal196752, 14 days ago

Q1.To develop critical and analyzing skills amongst her children, maths

teacher showed her students a video of 3D objects and asked the

students to identify the 3D objects. One such video was of PWD

workers constructing road using road roller. The cylindrical road roller

made of iron was 1m long. Its inner diameter was 54cm and thickness of

the iron sheet rolled into the road roller is 9cm.
i) What is the outer radius of the road roller ?

a) 22cm

b) 44cm

c) 36cm

d) 11cm

ii) What is the outer curved surface area of the road roller ?

a) 1548π cm²

b) 220π cm²

c) 7200π cm²

d) 440π cm²

iii) If PWD workers constructed 1584 m² road in one day, find the

number of revolutions that the road roller made ?

a) 500

b) 1000

c) 700

d) 100

iv) Find the inner curved surface area of the road roller?

v) Find the total surface area of the road roller?​

Answers

Answered by BrainlyAceAnuska
0

Answer:

81x4 + 54.72 - 9x2 - 3x + 2 is divided by 3x + 2.

Answered by RAJAN05PASI05
0

Answer:

(i)   36 cm

(ii)  7200π cm²

(iii) 700

(iv) 16971.428 cm²

(v)  43164 cm²

Step-by-step explanation:

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