Answer:
2cm, 2cm and 2cm
Step-by-step explanation:
![\sqrt[3]{8} = 2](https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B8%7D%20%3D%202)
Answer: 60 degrees
Step-by-step explanation: triangles are come to 180 if you add all angles correctly. therefore if you do 180-90-30, you'll get 60.
Answer:
Answer: 572
Step-by-step explanation:
Answer:
Well, it's the perimeter, so...40.
You just calculate the perimeter of a rectangle with the lenght of 12 and width of 8, by the formula

or you can factor it out.
Answer:
x = 30
y = 2
Step-by-step explanation:
Please note: the value for x is correct only if this triangle is a right triangle.
This can be solved because 2(5y) = 20 and because if a triangle has all congruent angles then its side lengths are also congruent.