ameliaaa1 ameliaaa1
  • 25-10-2015
  • Mathematics
contestada

A n-sided polygon has interior angles of which 4 of them are of sizes 125。, 220。, 40。and 295。 and the remaining are of sizes 20。each. How many sides does the polygon have?

Respuesta :

konrad509
konrad509 konrad509
  • 25-10-2015
[tex]125+220+40+295+20(n-4)=\\680+20n-80=\\ 20n+600\\\\ 20n+600=180(n-2)\\ 20n+600=180n-360\\ 160n=960\\ n=6 [/tex]

6 sides
Answer Link

Otras preguntas

round 33 and 89 to estimate their sum
greatest common factor of 25 and 35
True or false:all matter contains thermal energy,even ice
At tire depot a pair of tires sells for $216.The manager special advertises the same tires selling at a rate of $380 for 4 tires .Hoe much do you save per tire
In which of the following regions did General MacArthur lead American forces in World War II? a. Korean front b. European front c. Pacific front
True or false:all matter contains thermal energy,even ice
what is the value of a cube shaped box with edges 6 cm. in length?
Healthy bodies can come in a variety of shapes and sizes. How would changes in the types of bodies used in advertisements affect the health choices of the gener
The gcf of any two even numbers is always even true or false
write 5/3 as a mixed number