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likoan [24]
3 years ago
12

How do you find the area of a circle?

Mathematics
1 answer:
dolphi86 [110]3 years ago
3 0
Area is pi * (radius^2)
Circumference is pi * diameter
The infirmation you'll need is either a radius or diameter. Diameter is twice the radius.
For question four, you will be working with circumference.
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The radius of a circle is 50 feet what is the circumstances of the circle use 3.14 for pi
oksian1 [2.3K]

Answer:

314 feet

Step-by-step explanation:

c = 2\pi \: r  \\  = 2 \times 3.14 \times 50 \\  = 3.14 \times 100 \\  = 314 \: feet

6 0
3 years ago
If four angles of a convex pentagon measure 120°, 93°, 108°, and 101°, find the measure of the fifth angle. Show equations and w
olga nikolaevna [1]

It is given in the question that

If four angles of a convex pentagon measure 120°, 93°, 108°, and 101°, find the measure of the fifth angle.

First we have to find the sum of measurement of all the angles of a convex pentagon, by using the formula

=(n-2)*180

Where n is the number of sides. And for polygon, it is 5 .SO the  sum of measurement of angles of a polygon is

=(5-2)*180 = 540 \degree

Let the measurement of missing angle be x .

So we have

120+93+108+101+x=540

422+x =540

x=540-422=118


7 0
3 years ago
A car can travel 234 miles on 26 gallons of gasoline. How far can it travel on 51 gallons?
castortr0y [4]

Answer:

459 Miles

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
What is x the missing side length in triangle DEF
larisa86 [58]

Answer:

x = 9.75

Step-by-step explanation:

We know that Triangle ABC and DEF are congruent, therefore;

\frac{CB}{FE} = \frac{AB}{DE}<em />

\frac{12}{9 }=\frac{13}{x}

=> 12*x = 9*13

=> 12x = 117

=> x = 117 / 12

<u>=> x = 9.75</u>

Hope this helps!

4 0
3 years ago
A bookstore classifies its books by reader group, type of book, and cost. What is the probability that a book selected at random
Murrr4er [49]

Answer:

Pr(Cb) & Pr(cost $15) = 15(Ncb)/(T1×T3)

Step-by-step explanation:

Classification of the book in to 3

First let's assign terms to each probability

Let:

T1= total number of type of Reader's group

T2 = total number of Type of book

T3 = total number of type of Cost

Probability of child's book and cost $15= Pr(Cb) & Pr(cost $15)

Then find probability of child's book and cost separately:

Pr of child's book = Pr(Cb)

Pr(Cb) = (number of child's book)/ total number of type of group

Ncb = number of child's book

Pr(Cb) = Ncb/T1

Pr (cost $15) = $15 book/total number of cost

Pr (cost $15) = 15/T3

probability of child's book and cost $15 = Pr(Cb) × Pr (cost $15)

= Ncb/T1 × 15/T3

Pr(Cb) & Pr(cost $15) = 15(Ncb)/(T1×T3)

3 0
3 years ago
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