Answer:
D.−√5
Step-by-step explanation:
4 sqrt(20) -3 sqrt(45)
We know that sqrt(ab) = sqrt(a) sqrt(b)
4 sqrt(4) sqrt(5) - 3 sqrt(9) sqrt(5)
4 *2 sqrt(5) - 3 *3 sqrt(5)
8 sqrt(5) - 9 sqrt(5)
- sqrt(5)
The area of the circle is given as:
Plugging the value of the radius we have that:
Therefore the area in terms of pi is:
Answer: The measure of the vertex angle = 80°
Step-by-step explanation:
Angle sum property of triangle : The sum of the measures of the angles for any triangle is 180 degrees.
So,
'
Then, vertex angle =
Hence, The measure of the vertex angle = 80°
Answer:
a cone
Step-by-step explanation:
a cone would be formed due to the point on the graph forming a triangle, and when a triangle is spun around an axis on one of its sides it will form a cone