Because for example 349+567 is something you need to regroup.You start by the ones.9+7=16. You don't always need to regroup though
All of the angles in a triangle equal 180° so if the first 2 angles are 60°, combined that equal 120°, leaving 60° left. X= 60°
Answer:
The correct answer is C
Step-by-step explanation:
The height of the original triangle is 3 and the length is 6, so we have a ratio of 3:6. The only triangle that works is the one with a height of 5 and a length of 10 because both simplify to 1:2.
Hope this helped!
Answer:
It's an equilateral triangle.
My justification..... it looks like it
Answer: 
Step-by-step explanation:
