6
Area that the goat can cover = π x 7² m² Area that the goat can cover in the square plot = (1/4) x π x 7² m² A = (1/4) x π x 7² m² A = (1/4) x 22/7 x 49 m² A = 38.5 m²
The LCM of 3/7 and 4/m is 7*m if m is not a multiple of 7, and m if m is a multiple of 7.
4/7 - 4/m need a common denominator--multiply the first term by m/m and the second by 7/7 4m/7m - 28/7m (4m-28)/7m OR 4/7 - 4/m
It is: 5*7 = 35 square m
A=m*h m=(a+b)/2
6
Area that the goat can cover = π x 7² m² Area that the goat can cover in the square plot = (1/4) x π x 7² m² A = (1/4) x π x 7² m² A = (1/4) x 22/7 x 49 m² A = 38.5 m²
4/7 x 56 m = 4/7 x (7x8) m = (4x7x8)/7 m = 4 x 8 m = 32 m
This is 7 + 4 + 7 + 4 = 22 m.
area = π x radius^2 ≈ 22/7 x 2^2 sq m = 88/7 sq m = 12 4/7 sq m ≈ 12.57 sq m
The LCM of 3/7 and 4/m is 7*m if m is not a multiple of 7, and m if m is a multiple of 7.
4/7 - 4/m need a common denominator--multiply the first term by m/m and the second by 7/7 4m/7m - 28/7m (4m-28)/7m OR 4/7 - 4/m
It is: 5*7 = 35 square m
m
4.32m Check: 0.5*(30+20)*4.32 = 108 square m
(m^4 - n^7)(m^4 + n^7)