Answer:
The answer will be 30cm
Because 40 divided by 4 is 10 and times it by 3
Yes the sides are equal to each other
Answer:
-10
Step-by-step explanation:
-4 between each number
Answer:
No, It is not a right triangle
Step-by-step explanation:
For it to be a right triangle, the hypotenuse would be equal to the sum of the legs when squared.
Use the pythagorean theorem-
8^2+12^2=15^2
64+144=225
208=225
Since they aren't equal, it is not a right triangle.