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3 years ago

10

There is a 4 sided shape formed from the circle centers and the 2 intersections of the white circles. What must this shape alway

s be?

1 answer:

IceJOKER [234]3 years ago

6 0

It’s a cylinder !!
hope this helpsss

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3 An open cone has a vertical angle measuring 40°

belka [17]

Answer:

13.41 cm

Step-by-step explanation:

The radius, height, and HALF of vertical angle makes a triangle.

Where

Radius will be the base of the triangle

Height will be the "height" of the triangle

Top angle will be HALF of vertical angle (40/2 = 20)

From the 20 degree angle, the side "opposite" would be the radius, which is 30. The side "adjacent" would be the height, let it be h.

<em>Which trig ratio relates opposite and adjacent? Yes, that is TAN. Thus we can write:</em>

Tan(20) = opposite/adjacent

Tan(20) = 30/h

h = 30/Tan(20)

h = 13.41

So

The height of the cone would be around 13.41 cm

3 0

3 years ago

what is the scale factor of triangle UVW to triangle XYZ where uvw has side Lengths 3,4,2, and XYZ has lengths 14,28,21

alekssr [168]

Answer: 7

Step-by-step explanation:

Given: Triangle UVW map to triangle XYZ where Triangle UVWhas side Lengths 3,4,2, and triangle XYZ has lengths 14,28,21.

We know that the scale factor between two similar figures is the the ratio of the corresponding side of image to the original figure.

Let k be the scale factor.

Then,

$k=\frac{21}{3}=\frac{14}{2}=\frac{28}{4}=7\\\\\Rightarrow\ k=7$

Hence, the scale factor = 7

8 0

3 years ago

To get ready for school, Traci spent 1/20th

s2008m [1.1K]

Answer:

3/5

Step-by-step explanation:

1/10+1/20=3/5

5 0

2 years ago

If 1 adult female is randomly selected, find the probability that her pulse rate is between 72 beats per minute and 80 beats pe

nataly862011 [7]

data insufficient. update the question

4 0

3 years ago

Which of the following sets of points are vertices of a right triangle?

grandymaker [24]

Please find the picture for your triangle.
We know, area of a ∆ = <u>1/2 × base × height</u>
Here, base = ( 1 + 7 ) units = <u>8 units</u>
Height = ( 7 - 1 ) units = <u>6 units</u>
Therefore, area of the ∆
= <u>(1/2 × 8 × 6) square units</u>
= <u>24 square units.</u>

<u>Answer</u><u>:</u>

<em><u>2</u><u>4</u><u> </u><u>square </u></em><em><u>units</u></em>

Hope you can get an idea from it.

Carry on learning.

Doubt clarification - use comment section.

3 0

2 years ago