Complete the sentence to describe the triangle shown DEF is
A. Acute triangle
B. Obtuse triangle
C. Right triangle
And it’s
A. Equilateral triangle
B. Scalene triangle

Fiona and her friends are playing a game by guessing where a coin will land when it is randomly dropped inside the square shown below. fiona guesses that the coin is likely to land in the blue area. which explains whether or not fiona is correct and why?

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?