Since we are given with the three sides of the triangle and asked to determine the angle, we can use the cosine law.
Its 4 because its the gcf not the lcd
A 10x7 =70 and u use i-ready cool
Given length of the garden = 35 feet
Given width of the garden = 15 feet
Let's assume the walkway has a width of x feet.
The figure of the garden with walkway is attached below.
Length of walkway= 
Width of walkway = 
Area of walkway = length of walkway * width of walkway
Area = 
Area = 
Area =
.... Answer