Finding perimeter and area

The perimeter of a two-dimensional shape is the distance around the shape. It is found by adding up all the sides (as long as they are all the same unit). The area of a two-dimensional shape is found by counting the number of squares that cover the shape.

Step-by-step explanation:

75 times in a minute

1 minute = 60 seconds

75 times > 60 second

1 time > ((60/75) x 1) second

Time period = (60/75) second

Frequency = 1/Time period

Frequency = 1/(60/75) = 1/0.8 = 1.25 Hz

Hope it helped!