360/9= 40
180-40= 140
140/2= 70
X=70
Answer:
B
Step-by-step explanation:
You can rule out all others. A is wrong because a triangle cannot be acute and obtuse at the same time. C is wrong because a polygon dosen't neccassarily need to be a triangle, for example, a polygon is a closed shape, so it could be a rectangle. It isn't D because there are obtuse triangles out there. So, the only one left is B.
Answer:
Step-by-step explanation:
We will use to midsegment theorem to solve this question.
Midsegment theorem,
Segment joining the midpoints of two sides of a triangle, is parallel and and measure the half of the the third side.
7). HE is the midsegment.
HE = 
= 
= 40
8). ED = 
= 
= 50
9). HD = 
TU = 2(HD)
= 2(80)
= 160
10). TE =
= 
= 80
Answer:
The sum of a rational number and an irrational number is irrational
Step-by-step explanation:
Answer:
n=3 (there's no way I can explain this I can only give you the answer)
Step-by-step explanation:
