Answer:
25.1cm
Step-by-step explanation:
C=2πr
here radius, r=4 cm and π=3.142
Put values in formula.
C=2(3.142)(4)
C=25.1 cm (Rounded to 1 decimal place)
A 90
In a regular shape all of the sides an angles are the same
360/4=90
Cos α = sin (90-α) so cos 19 = sin 90-19 = sin 71
Answer:
alex has 25 counters
Step-by-step explanation:
8x4=32
32-7=25
25 is your answer
