Answer:
perimeter of square = s+s+s+s
= 15+15+15+15
= 60 ft
You will first find the unit rate which is single in four hours so then multiply by triple which is 3 and then you get triple will be in 12 hours
28 + vector b = -12
vector b = -40
vector b has magnitude 40 units in the negative y direction.
Given:
Irregular Shape:
Semi-circle and rectangle:
Area of a rectangle = l * w
Area of a semi-circle = (π r²)/2
Area of rectangle = 8 cm * 5 cm = 40cm²
Area of a semi-circle = (3.14 (4²))/2 = (3.14*16)/2 = 50.24/2 = 25.12cm²
4² is taken from diameter of 8cm divided by 2 to get the radius.
Total area = 40 cm² + 25.12 cm² = 65.12 cm²
