What is the area formula for a rectangle?
A = l x w
Find the area of a square with side length 7cm.
A = 49cm2
A farmer wants to put a fence around a piece of land to keep his sheep away from his cows. One side of the fence is 12m, the second side is 11m and the third side is 13m. The fence comes in sections of 3. How many sections of fence will he need?
12 sections
12m + 11m + 13m = 36m
36/3= 12 sections
Find the area of a right triangle with base = 7cm and height = 8cm.
A = 28 cm2
7 x 8 = 561/2 of 56 = 28
A farmer wants to put a fence around a piece of land to keep his sheep away from his cows. One side of the fence is 12m, the second side is 11m and the third side is 13m. The fence comes in sections of 3. Each section costs 10Euros. How much will the fence cost?
120 Euros
12 sections at 10 Euros
12m + 11m + 13m = 36m
36/3= 12 sections