Question 4: The diameter of the wheel of a car is 70 cm. How many revolutions will it make to
travel 110 km?
Answers
Answer:
THe wheel will make 50000 revolution if it travels 110 km.
Step-by-step explanation:
Diameter, d = 70 cm
Radius, r = d/2 = 70/2 = 35 cm
Circumference = 2πr
= (2 x 35 x 22)/7 cm
= 44 x 5 cm
= 220 cm
The wheel travels 110 km, i.e., 1,10,00,000 cm
In 220 cm the wheel completes 1 revolution.
In 1 cm the wheel completes 1/220 revolution.
In 1,10,00,000 cm the wheel completes 1,10,00,000/220 revolution
= 50,000 revolution.
Please mark me the brainliest.
Answer
no. of revolutions = 50000
Step-by-step explanation:
first we will find the circumference of the wheel
i.e, 2πr
here r = 70/2 = 35 cm
∴ circumference of the wheel = 2×22/7 × 35 = 220 cm
convert 110km into cm = 11000000cm
now,
no. of revolutions = 11000000 ÷ 220 = 50000 revolutions
hope this helped and if not then i am really sorry (T^T)
THE ANSWER IS CORRECT THO. (>∨<)