Answer:
C) 3600 divided by 6
55 and 55 or 70 and 40
Step-by-step explanation:
A triangle has 180o and an isosceles triangle has two angles that are the same. As 70 is less than half, we have a couple of possible solutions to this. So one possible solution is 70-55-55. So the other possible solution is 70-70-40.
y = - 13, y = 13
Given
y² = 169 ( take the square root of both sides )
y = ± = ± 13
Since 13 × 13 = 169 and - 13 × - 13 = 169