Question 8:
Your choice is correct: two figures are similar if all correspondant sides are in the same ratio.
In your case, the figure on the right have correspondant sides which are all three times the figure on the left, since
So, the two figures are similar and their ratio is 1:3.
Question 9:
We follow exactly the same approach: let's see if the radii and the heights are in the same ratio: the radii are in ratio
While the heights are in ratio
So, the answer is again yes, they are similar, and the ratio is 1.6.
Answer:
33,493.3 cm³
Step-by-step explanation:
Volume of a sphere of radius r = V = (4/3)πr³
Here the radius is 20 cm. Therefore, V = (4/3)(3.14)(20 cm)³ = 33,493.3 cm³
The volume of this sphere, to the nearest tenth, is 33,493.3 cm³
Answer:
<em>Area: x^2 + 6x</em>
Step-by-step explanation:
1. This figure resembles a parallelogram, with it's dimensions parallel to the point of congruency. Even if it wasn't a parallelogram however, you would get the basic idea of <em>calculating it's area by height * length</em>.
2. Knowing the dimensions to be ( x + 6 ) by x, you can multiply them through algebra as such: x ( x + 6 ) ⇒ x^2 + 6x
3. <em>Answer: x^2 + 6x</em>
The answer for this is both C and D
0 is greater than -3
and -1 is greater than -3
Answer:
It would be 110 because this is an obtuse angle and obtuse is over 90 degrees which is an right angle
Step-by-step explanation: