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In-s [12.5K]
3 years ago
11

How many degrees are in each interior angle of a regular pentagon

Mathematics
2 answers:
harkovskaia [24]3 years ago
6 0
The measure of an interior angle of a regular pentagon is 108 degrees.
MakcuM [25]3 years ago
5 0
There are 540 degrees in a regular pentagon.
You can work out the angle of each angle by dividing interior angles with how many angles there are, which would be 108,

Hope this helps.
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state the slope and y-intercept for the graph of the equation y=-3x+5state the slope and y-intercept for the graph of the equati
Alchen [17]
In Y=-3x+5 the slope is: -3 and the Y intercept is 5.

Explanation:
The equation without any actual inputs is: Y=mX+B. m refers to the slope. B is the Y intercept. So when looking at the equation with information inputted. You would follow the same structure. Slope will be with the X and Y intercept will be added after.
7 0
3 years ago
The angle θ lies in Quadrant II. sinθ=3/4 What is cosθ ?
Elden [556K]

Hello from MrBillDoesMath

Answer:

[email protected] = - sqrt(7)/ 4    

which is choice B

Discussion:

This problem can be solved by drawing triangles and looking at ratios of sides or by using the trig identity:

([email protected])^2 + (sin2)^2 = 1

If [email protected] = 3/4 , the

([email protected])^2 + (3/4)^2 = 1 =>              (subtract (3/4)^2 from both sides)

([email protected])^2 = 1 - (3/4)^2  = 1 - 9/16   = 7/16

So...... taking the square root of both sides gives

[email protected] =  +\- sqrt(7)/ sqrt(16) = +\- sqrt(7)/4

But is [email protected] positive or negative?  We are told that @ is in the second quadrant and cos(@) is negative in this quadrant, so our answer must be negative

[email protected] = - sqrt(7)/ 4    

which is choice B


Thank you,

Mr. B


4 0
4 years ago
Find the area and the perimeter of the shaded region
lyudmila [28]

Answer:

area: 41.04 cm² ; perimeter 35.8 cm

Step-by-step explanation:

Perimeter of shaded area = 1/4 perimeter of circle + line AC = ¼ * 3.14 * 2 * 12 + √(12² + 12²) = 18.84 + 12√2 cm = 35.8 cm

Area of Shaded Region = 1/4 area of circle - area of triangle = ¼ * 3.14 * 12² - ½ . 12 * 12

= (¼ * 3.14 - ½) * 12² = 41.04 cm²

8 0
3 years ago
3 Max travels to see his brother's family by car. He drives 216 miles in 4 hours.
OLga [1]

Answer:

54 miles per hour

Step-by-step explanation:

If you divide the number of miles (216) by the hours (4) you get 54.

4 0
4 years ago
Find slope of a straight line if both intercept are equal​
Juli2301 [7.4K]

Answer:

-1

Step-by-step explanation:

Let the points be <u>(0, a)</u> and <u>(a, 0)</u> (As it mentions the intercepts are equal)

==============================================================

Applying slope formula :

⇒ m = 0 - a / a - 0

⇒ m = -a/a

⇒ <u>m = -1</u>

6 0
2 years ago
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