Alma wants to swim one lap in the pool as fast as her friend Blanca, who can swim one lap in 1 minute and 23 seconds. Alma started swimming her lap in the pool 57 seconds ago. How much time does Alma have left to finish her lap if she wants to tie Blanca's time?

the circumference of a circle is, 10.676 cm.

step-by-step explanation:

the formula for circumference of a circle is given by:

where

c is the circumference of a circle and

d is the diameter of a circle.

given: diameter(d) = 3.4 cm and use

substitute these values in [1] we get;

cm

therefore, the circumference of a circle is, 10.676 cm

t= half of the arc subtended by t.

r= half of the arc subtended by r.  

t+r= half of the arc subtended by t + half of the arc subtended by r= half of 360=180

step-by-step explanation:

yes they are the same