Question

pls anyone answer all this question
don't spam
pls urgent
Its most important test
​its class 9 question chapter circles​

Answer 1

Answer:

Step-by-step explanation:

Given radius of wheel = 40cm

Perimeter = 2πr=80π cm

Speed of car = 66 km/he = 66× 18/5m/s

We know speed = time/distance

Distance travelled in 10 min=66× 5/18 =distance/10x60

distance = 66× 5/18x10x60

distance = 11000 m=11 km$$

now 1 complete revolution = 2πr

Total no. of complete revolution =  11000/140x22/7x100

=4375

Hence 4375 revolution complete  in 10 m