angles of polygons: each consec. angle increases by 10

[keri__lynn]

ok it says to find the measure of each interior angles using the given information.

quadrilateral in which the measure of each consecutive angle increases by 10

also i have this question that i have no idea how to do

its a proof question

it says to use algebra to prove the exterior angle sum theorem...

Can someone please answer these two questions... ASAP... thanks

 

[galactus]

A quadrilateral has angle sum of 360.

We are told each increases by 10, so the angles are x+(x+10)+(x+20)+(x+30)=360

Solve for x.

 

[keri__lynn]

ok i got the answer for the first one and i bot 75 but what do i do with the proof for the other question???

 

[stapel]

ok i got the answer for the first one and i bot 75...

Sorry, but no; the measures of all four angles cannot be seventy-five degrees. Or did you perhaps mean that "75" was the value you got for the variable...? (If the latter, make sure you provide the answer to the question actually asked; namely, the values of the measures of each of the four angles.)

...but what do i do with the proof for the other question???

What is the statement of the theorem? What picture(s) have you drawn? What are your thoughts? What have you tried so far? Where are you stuck?

Please be complete. Thank you!

Eliz.

 

[galactus]

Re: angles of polygons

ok i got the answer for the first one and i bot 75 but what do i do with the proof for the other question???

75 is OK for one angle, but remember they increase by 10 each time.