A medida do raio da roda dianteira de uma bicicleta é igual a 42 cm. 42 cm
Considerando a 3,14 , responda:
a) Qual é o comprimento da roda dessa bicicleta?
b) Se essa roda dianteira completar 200 voltas em contato com o chão, que
distância a bicicleta terá percorrido?

answer: no

step-by-step explanation:

you are only given the cost not the amount of pounds.

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have