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3 years ago

What is the radius of the circle? Example how you know..

Mathematics

2 answers:

Lostsunrise [7]3 years ago

7 0

Answer:

The radius of the circle is 7 units.

Step-by-step explanation:

Radius is the measure from the center point of a circle to a point on the outside edge. Since you have coordinates, you can find the radius using distance formula.

<em>You could also just count how many units are between the center and the edge to get 7 units because 8 - 1 = 7</em>

xxTIMURxx [149]3 years ago

3 0

Answer:

r=7

Step-by-step explanation:

C is at x=1 at circle side is at 8

8-1= 7

so, r=7

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3 years ago

Read 2 more answers

What is the height of an equilateral triangle if the sides are 10

4vir4ik [10]

Answer:

The height of the equilateral triangle is $5\sqrt{3}\ units$

Step-by-step explanation:

we know that

An equilateral triangle has three congruent sides, and three congruent angles that each measure 60 degrees

To find out the height of an equilateral triangle, apply the Pythagoras Theorem in the right triangle ABD

Remember that the height of an equilateral triangle bisects the base.

see the attached figure to better understand the problem

$AB^2=AD^2+BD^2$

substitute the given values

$10^2=5^2+BD^2$

Solve for BD

$100=25+BD^2$

$BD^2=100-25$

$BD^2=75$

$BD=\sqrt{75}\ units$

simplify

$BD=5\sqrt{3}\ units$ `

therefore

The height of the equilateral triangle is $5\sqrt{3}\ units$

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4 years ago

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3 years ago

If someone could help me I would mean a lot man.

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2 years ago

A professional singer charged $1000 an hour. Her rate increase by 50% after midnight. If she performs one night from 8:30pm to 1

otez555 [7]

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