3 years ago

What is the sum of the angles of an octagon?

1 answer:

7 0

Answer is 1080 degrees

Formula for calculating angles in a polygon (Shape with 4 or more sides) is (n-2) x 180, where n is the number of sides on the shape. Octagon has eight sides, so you subtract it by 2, which is 6. Multiply that by 180 to get 1080, which is the sum of the angles.

You might be interested in

Need help please assist me find the area of a regular hexagon

garri49 [273]

Answer:

The area of the regular hexagon is $166.3\ units^{2}$

Step-by-step explanation:

we know that

The area of a regular hexagon can be divided into 6 equilateral triangles

step 1

Find the area of one equilateral triangle

$A=\frac{1}{2}(b)(h)$

we have

$b=r=8\ units$

$h=4\sqrt{3}\ units$ ----> is the apothem

substitute

$A=\frac{1}{2}(8)(4\sqrt{3})$

$A=16\sqrt{3}\ units^{2}$

step 2

Find the area of 6 equilateral triangles

$A=(6)16\sqrt{3}=96\sqrt{3}=166.3\ units^{2}$

7 0

3 years ago

A count went from 605 to 203. What was the approximate percent decrease? Round the numbers to find an estimate of the percent de

topjm [15]

Answer:

66%

Step-by-step explanation:

5 0

3 years ago

If you answer this i will give you the BRAINLIEST Pls answer Asap

Eva8 [605]

Answer:

You know that negative 3 1/2 is the lowest number so you would put that first. The greatest number would be the coldest in Celsius, and 1/20 would be the last question (the sea level) if calculations are correct, you would get full credit.

5 0

3 years ago

Write the equation of the linear relationship in slope-intercept form, using decimals as needed.

Bogdan [553]

0,1.5 and same for the rest

4 0

3 years ago

ella [17]

Yes, if you solve the problem in the parenthesis, then you add the two solutions together and you got ur final solution

5 0

4 years ago