MHB Can a Triangle Have Angles of 55°, 65°, 70°; 53°, 64°, 73°; 80°, 105°, 5°?

[elmothemonkey]

thanks.. an explanation on how to do it will help!1.Can a triangle have angles equal to
a. 55°, 65°, 70°
b. 53°, 64°, 73°
c. 80°, 105°, 5°
2. In (triangle)△DEF, <D, <E and <F -44° (deg), Find <D and <E

 

[CaptainBlack]

thanks.. an explanation on how to do it will help!1.Can a triangle have angles equal to
a. 55°, 65°, 70°
b. 53°, 64°, 73°
c. 80°, 105°, 5°
2. In (triangle)△DEF, <D, <E and <F -44° (deg), Find <D and <E

1) The angles in a triangle sum to 180 degrees, so which of a, b and c do?

2) Please retype this so we can understand it.

CB

 

[elmothemonkey]

on number one.. i don't get it.. they all sum 190.. what do i do?
and on number two.. that's what the paper says.. but i think it meant <F is equals to -44 degrees

 

[CaptainBlack]

on number one.. i don't get it.. they all sum 190.. what do i do?

Answer "no", and give the reason.

and on number two.. that's what the paper says.. but i think it meant <F is equals to -44 degrees

What does it mean about angles D and E?

Also a triangle cannot have an internal angle of -44 degrees.

(Try typing exactly what it says in the question together with extra information that is common to the question set etc)

CB

 

[elmothemonkey]

in triangle DEF, angle D = angle E and angle F = 44degrees ; find angle D and angle E
here it is.. I am so sorry i thought it says negative.. ​

 

[SuperSonic4]

in triangle DEF, angle D = angle E and angle F = 44degrees ; find angle D and angle E
here it is.. I am so sorry i thought it says negative.. ​

Is that the entire question? Unless we're told the triangle is isosceles we've no way of finding out the other two angles. All we know is that D+E+F = 180 degrees so D+E+44 = 180 which leads us to D+E = 136 degrees but we can't go any further.

 

[CaptainBlack]

in triangle DEF, angle D = angle E and angle F = 44degrees ; find angle D and angle E
here it is.. I am so sorry i thought it says negative.. ​

\(\angle D+\angle E=180^{\circ}-44^{\circ}=136^{\circ}\)

Also since we are told \(\angle D=\angle E\) these are both \(??^{\circ}\).

It would save a lot of time if you took more care to post exactly what you are asked.

CB