Math SBA: Precious Perimeter

What is perimeter? The size of the surface of a shape. The length of all sides of a shape added up together. The angles of a shape How many corners a shape has. Challenge 1 Look at the 2 rectangles here. Answer the questions below. Rectangle 1a. What is the length of side a? And what is the length of side b?Side a is 2 cm long.Side b is 5 cm long.b.What is the length of all sides together (its perimeter)?2 cm + 5 cm + a + b = 14 cmRectangle 2c. What is the length of side c? And what is the length of side d?Side c is 4 cm long.Side d is 3 cm long.b. What is the length of its perimeter?3 cm + 4 cm + c + d = 14 cm Challenge 1-2 Calculate the perimeter of each of the following rectangles.Don't forget to write your answer in cm! Rectangle Perimeter Rectangle A 12 cm Rectangle B 16 cm Rectangle C 18 cm Rectangle D 16 cm Challenge 2-1 Use the rectangle tool to draw a rectangle of 14 cm by 4 cm.Make sure you label the length of each side. What is the perimeter of the rectangle?The perimeter is 36 cm Challenge 2-2 Match the descriptions of rectangles with their perimeters. Rectangle A: 4 cm by 6 cm Perimeter: 20 cm Rectangle B: 5 cm by 7 cm Perimeter: 24 cm Rectangle C: 2 cm by 1 cm Perimeter: 6 cm Rectangle D: 4 cm by 9 cm Perimeter: 26 cm Challenge 3 Answer the following questions:Farmer John has a field on which he keeps sheep. Only his sheep keep escaping! He decides to build a fence around the perimeter of his field.His field has a rectangle shape that is 12 meter long and 20 meters wide. How many meters of fence does farmer john need to buy? Farmer John's Sheep FieldWrite down how you calculated how much fencing Farmer John needs. Farmer John needs 64 meters of fencing.