1 year ago

The sum of the interior angles of a polygon is

Mathematics

1 answer:

Crank1 year ago

6 0

Answer:

D) 15

Step-by-step explanation:

The sum of the interior angles of a polygon is given by

$(n - 2) \times 180$

We have that, the sum of the interior angles of a polygon is

26 right angles. We want to find n, the number of sides.

We substitute into the formula to get:

$(n - 2) \times 180 = 26 \times 90$

Divide through by 90

$2(n - 2) = 26$

Divide through by 2

$n - 2 = 13$

$n = 13 + 2$

$n = 15$

You might be interested in

Flannery used 30 lilies and 78 roses to create six identical flower arrangements. Write an equation to describe the relationship

Volgvan

Number of lilies used= 30 lilies

Number of roses used= 78 roses

To make the six identical arrangements:

We need to divide lilies into six equal parts, as well as number of roses in six equal parts.

I=Number of lilies in each arrangement = $\frac{30}{6}=5$

r=Number of roses in each arrangement = $\frac{78}{6}=13$

Total number of flowers in arrangement (I + r)= 5 Lilies + 13 Roses=18 (Flowers)

The relationship between l, the number of lilies, and r, the number of roses:

→ 5 I = 13 r

$I=\frac{13 r}{5} , r =\frac{5I}{13}$

7 0

1 year ago

An English professor assigns letter grades on a test according to the following scheme. A: Top 7% of scores B: Scores below the

Assoli18 [71]

The limits for a C grade are 68 to 78.

4 0

1 year ago

the cost of an annual tuition at a university increased from 10,500 to 11,300 what is the percent increase in tuition to the nea

Maurinko [17]

Percent increase
find increase first
10500 to 11300
11300-10500=800
so
percent increase
change/original
origianal=10500
change=800
800/10500=8/105=0.0761
percent means parts out of 100
0.0761/1 times 100/100=7.61/100=7.61%

rond 7.61% to tenth or to 7.6%

7.6%

5 0

2 years ago

Simplify 100y^3/98xy pls answer soon hegarty maths lazy

OleMash [197]

Answer:

50y^4x/49

Step-by-step explanation:

y^3/98

((100* y^3/98 * x) * y

2.1 y^3 * y^1=y^(3+1)=y^4

8 0

1 year ago

Arlene is testing whether school is more enjoyable when students are making high grades. She asked 100 students if they enjoyed

WARRIOR [948]

What is the probability that a student with a GPA below 3.0 does not enjoy school?
Only 15/60 below 3.0 enjoy school.
Rounded, that equals 25%.

Therefore, there is a 75% probability that a student with a GPA below 3.0 does not enjoy school.

6 0

1 year ago