Answer:
Step-by-step explanation:
<u>We know that:</u>
- sin 30° = 1/2, therefore arcsin (1/2) = 30°
- tan 45° = 1, therefore arctan (1) = 45°
<u>So the value of the expression is:</u>
- arcsin (1/2) + arctan (1) = 30° + 45° = 75°
V = (1/3)pi*r^2*h that's the formula to used to get the volume of the cone
Answer:
Step-by-step explanation:
-9pi/8
23pi/8
-25pi/8
I think its.
Answer:
m<b=107º
Step-by-step explanation:
180-41-32=107
D and B are congruent
Answer:
34.9^2
Step-by-step explanation:
Well if one side is 4 cm then the square is 16cm^2.
The area of a circle is pi r^2.
So the radius is 2.
we plug 2 in.
pi 4
12.6/2
6.3
6.3 * 3 = 18.9cm^2
18.9 + 16 = 34.9
