For coins of the same type, the total value can be found as follows:number⋅value=totalvaluewhere number is the number of coins, value is the value of each coin, and total value is the t...For coins of the same type, the total value can be found as follows:number⋅value=totalvaluewhere number is the number of coins, value is the value of each coin, and total value is the total value of all the coins. The perimeter, P , of a rectangle is the sum of twice the length and twice the width.P=2L+2W The perimeter of a triangle is the sum of the lengths of the sides.P=a+b+c