Answer:
Isosceles
Step-by-step explanation:
If BD is an altitude, it splits triangle ABC into 2 triangles. It is also a median, so it splits the angle ABC into 2 congruent angles. Angle ABD and CBD are congruent. That means that angles A and C are congruent. This is true because the 2 angles at D are both right angles. Because of this, side AB and side CB are congruent. That means that this is an isosceles triangle.
Answer: this is not equivalent 81-12+7=11
Step-by-step explanation: this is not equal because 81-12 is 69 and 69+7 will give you 76 witch is not equal to 11
Answer:
x = 39°
y = 90°
Step-by-step explanation:
Answer:
17/22
Step-by-step explanation:
8/11+1/2=16/22+11/22=17/22