Question

Who will put correct answers i will mark as Brainliest.I will sure mark as Brainliest. Answer in pic please ​

Answer 1

Answer:

Step-by-step explanation:

Q1) Given,

Height of trunk = 300cm

Circumference of trunk =176 cm

2πr=176

2×22/7×r=176

44/7×r=176

r=176×7/44

r=4×7

r=28cm

Volume of timber =πr^2h

=22/7×28×28×300

=739, 200cm^2

Q2) Given,

Diameter of roller= 84cm

Then radius = 42cm

Height of roller =120cm

No of revolution=500

We know that n= d/2πr

Therefore distance = n×2πr

=500×2×22/7×42

=132, 000cm or 1.32km

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