Answer:
b = 21
Step-by-step explanation:
By the Pythagorean Theorem, which states that if you have a right angle with legs of a and b, and a hypotenuse of c, then a^2+b^2=c^2. Use this on the right triangle in the diagram to get 841 = 400 + b^2, or 441 = b^2 and b = 21.
Note: I think that the 1st diagram was unnecessary. ;)
Perimeter of a square = 4s = 20ft
s = 20/4 = 5 feet
New length = 5 + 2 = 7 ft
New width = 5 - 1 = 4ft
New perimeter = 2(7 + 4) = 2(11) = 22ft
Answer:
424 cm²
Step-by-step explanation:
8 x 11 = 88 = 1 side
88 x 2 = 196 = 2 sides
11 x 6 =66 = 3 sides
66 x 2 = 132 = 4 sides
8 x 6 = 48 = 5 sides
48 x 2 = 96 = 6 sides
196 + 132+ 96 = 424
I’m pretty sure it’s 1 1/3
