Answer:
The first option x = y
Step-by-step explanation:
If 7x = 7y, then...
7x = 7y
7x / 7 = 7y / 7
x = y
Answer:
acute
Step-by-step explanation:
every angle is under 90 degrees
10:4 because there are 10 dolphins and 4 whales
When the sides are congruent (same direction and size), and the two opposite sides are parallel, the angles are the same. In an isosceles triangle, two angles are congruent, because two sides are congruent.