Answer:
A= 695.3cm²
Step-by-step explanation:
- We khow that the area of anctagon is : A= 2(1+
)*a² with a the side - so A= 2(1+√2)*a² = 695.29= 695.3 cm²
Use PEMDAS
P Parentheses first
E Exponents (ie Powers and Square Roots, etc.)
MD Multiplication and Division (left-to-right)
AS Addition and Subtraction (left-to-right)

Answer:

Step-by-step explanation:

It asks for area. area for rectangle is length * width. and triangle is 1/2 * base * height
The long side area has sides of 10 and 6. So area for that side is:
10 * 6 = 60
(I got the 6 from using the height of other side. they are same height)
area of other side is the area of rectangle and triangle added together.
area rectangle = 8 * 6 = 48
area triangle = 1/2 * 3 * 8 = 12
area side = 12 + 48 = 60
area 2 sides = 60 + 60 = 120
give me a bit for rest of it. about to drive somewhere