What is a diameter and what is a radius?

2 answers:

5 0

Radius is the length of the line segment from the center of the circle to an endpoint on the circle and diameter is twice the length of the radius of the circle.

Alisiya [41]2 years ago

4 0

A radius is where a segment from the center to the circle.
A diameter is a segment passing through side to side through the center.
- The radius is going to be HALF of what the diameter is.

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An inscribed angle in a semicircle is always

DIA [1.3K]

An inscribed angle in a semicircle is always90 degrees

5 0

2 years ago

Find the greatest number that will divide 63, 45 and 69 so as to leave the same remainder.

jeka57 [31]

Answer:

Step-by-step explanation:

Let n be unknown divisor and a be the same remainder, then

$63=q_1\cdot n+a\\ \\45=q_2\cdot n+a\\ \\69=q_3\cdot n+a$

Subtract a from all equalities:

$63-a=q_1\cdot n\\ \\45-a=q_2\cdot n\\ \\69-a=q_3\cdot n$

Subtract them:

$63-45=(q_1-q_2)n\Rightarrow 18=(q_1-q_2)n\\ \\69-63=(q_3-q_1)n\Rightarrow 6=(q_3-q_1)n\\ \\69-45=(q_3-q_2)n\Rightarrow 24=(q_3-q_2)n$

The greatest number is 6. When you divide numbers 63, 45, 69 by 6, you'll get remainders 3, 3, 3, respectively.

7 0

2 years ago

How do the lateral and total surface area of a cylinder differ ?

vichka [17]

The lateral surface area of a cylinder is just the long side connecting the bases, whereas the total surface area includes both the lateral surface area and area of the two circular bases.

$SA_l_a_t=2 \pi rh$ (Imagine a rectangle with the circumfrence of the base as one side and the height as the other being folded around)

$SA = 2 \pi rh + 2 \pi r^2$ (Plus the area of two circles)

The literal difference between surface areas would be the two bases 2πr² if you need that.

8 0

2 years ago

Here is a better picture

Sonja [21]

Answer:all

Step-by-step explanation:so because u have done all

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2 years ago

11) Write in word form: 94.179<br> nin tey four<br> and

Serggg [28]

Ninety four and one hundred seventy nine thousandths

94.179 = 94 179/1000

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2 years ago