Answer:
Step-by-step explanation:
Know Your Arithmetic
Remember PEMDAS
Get Positively Comfortable with Negative Numbers
Show Your Work
Don't Let the Letters Scare You
Be Sure to Answer the Right Question
Work Practice Problems
Calculator
Join a study group
Answer:

Step-by-step explanation:

Memorize the side ratios of a 45-45-90 right triangle.
The ratio between the sides of this triangle is 1:1:Sqrt(2), which means that the length of the legs are equal, and the length of the hypotenuse is simply the leg length multiplied by the square root of two.
The area is 113.1m If you want to double check go on google and look up surface area of a sphere. A calculator will come up. Hope this helped.
Answer:
Rhombus
Step-by-step explanation: