Answer:
Step-by-step explanation:
Kindly refer to the image attached in the answer region for labeling of triangle.
<em>AB </em><em>= 16
</em>
<em>BC </em><em>= 19</em>
<em>AC </em><em>= 15
</em>
We have to find the <em>angles </em><em>x</em> and <em>y</em> i.e. 
.
Formula for <em>cosine rule</em>:
Where
<em>a</em> is the side opposite to 
,
<em>b</em> is the side opposite to 
and
<em>c</em> is the side opposite to 
.
Similarly, for finding the value of <em>y:</em>
Hence, the values are:
Answer: 1000
Step-by-step explanation:
20x100=2000 and then 2000/2=1000
Answer: This one is D.110! ☺️
A. Diagonals bisect each other is always true. Each diagonal<span> cuts the </span>other<span> into two equal parts. It is because of the parallel lines in the parallelogram. </span>
Step-by-step explanation:
The perimeter of a triangle is calculated by adding all three side lengths together
That means x + 3 + x + 4 + x + 1 = 17 add the like terms
3x + 8 = 17
3x = 9
x = 3
BC = x + 3 ➡ 6
CD = x + 4 ➡ 7
BD = x + 1 ➡ 4
