Answer:
6
Step-by-step explanation:
(-1^2 + -1-2) / (2*-1^2 + -2-3)
1 + -3 / 2 + -5
-2 / -3
= 6
21.77 you can also type that in in the google search bar and your answer will pop up
Answer:
SA = 105 in^2
Step-by-step explanation:
To find surface area, find the area of all the shapes and add it all together. This shape has 4 triangle faces. They are all the same. So we can find one of them and times by 4.
Area of a triangle:
A = 1/2b•h
= 1/2• 5 • 8
= 1/2 • 40
= 20
One triangle has area 20, so times by 4 (bc four triangles)
4•20
= 80
Area of square 5•5
= 25
Add the areas:
80 + 25
= 105 sq in
Answer: it’s acute
Step-by-step explanation:
