A circle that passes through the vertices of a polygon
the center is called a circumcenter and the radius is the circumradius.
hope this answers your question!!
In this question, we use law of cosine which is
Substituting the given values of RS,RT, ST , we will get
Taking inverse cosine on both sides
Answer:
90 inches squared
Step-by-step explanation:
Formula for a rhombus is simply the diagonals over 2.
(The diagonals here are 12 and 15)
You could also do this intuitively. Because there is an inscribed right angle, each of the triangles inside are BH/2. Thus, the area of all four is 2BH. The base and height of each of the triangles is 6 and 7.5, so the area is 6 * 7.5 * 2.
Answer:
Her equation system is incorrect
Step-by-step explanation:
Remember that
1 dime=$0.10
1 quarter=$0.25
Let
x------> the number of quarters
y-----> the number of dimes
we know that
0.25x+0.10y=20.70 ------> equation A
x=10+y -----> equation B
Her equation system is incorrect, because in her second equation she exchanged the variables, using x instead of y and y instead of x.
It is undefined slope (it’s vertical). If it were to be zero slope, it would be horizontal
