Answer:
D
Step-by-step explanation:
The triangle is an isosceles triangle (2 sides same).
The sides BC and AC are radius of the circles, so these 2 sides are congruent. So, the opposite angles are equal as well. Since one angle is given as 20, the other angle is also 20.
So, we have the three angles of the triangle as:
20, x, and 20
We know, sum of 3 angles of a triangle is 180, thus we can write:
20 + x + 20 = 180
Now, we solve for x:
20 + x + 20 = 180
40 + x = 180
x = 180 - 40
x = 140
Correct answer is D
<u>Answer:
</u>
Volume of right circular cone is 18.6 cubic feet.
<u>Solution:
</u>
We need to find volume of right circular cone
Given height of right circular cone = 4.5 feet
Given circumference of base of the cone = 12.5 feet
Formula for volume of circular cone =
Where h is height and r is radius of base.
In given information we have height, but do not have radius. So first need to calculate radius of the base from given circumference of base.
Circumference of circle =
Given that circumference =12.5 feet
On substituting given value of height and calculated value of radius in formula of volume of cone , we get
Hence volume of right circular cone in consideration is 18.6 cubic feet.
Answer:
0.36
Step-by-step explanation:
4/11 = 0.36
This is the answer.
Answer: (2t+2) / 2 x s³
Step-by-step explanation:
Hi, to answer this question we have to analyze the information given:
The quotient means is a division.
The sum 2t and 2 = 2t+2 is the numerator
Twice the cube of s = 2 (s∧3) is the denominator. Twice means that we have to multiply by 2.,and the cube of s means s to the power of 3.
Mathematically speaking:
2t+2 / 2 (s³)
Feel free to ask for more if needed or if you did not understand something.