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Two sides of an obtuse triangle are 16 and 21. How many possible lengths are there for the third side, if it is a positive integer?
in hexagon ABCDEF,AB=ED=2 ,AF=CD=6 ,BC=EF=4 , and all the interior angles are equal. Find the area of hexagon ABCDE.
oh yea, isoceles triangles! median of hypotenuse = half of hyptenuse. i get it
I got 32. not sure, this seems incorrect
Triangle ABC is a right triangle with right angle at A. Suppose AX is an altitude of the triangle, AY is an angle bisector of the triangle, and AZ is a median of the triangle, and angle XAY=13. If X is on BY, then what is the measure of angle ZAC?
any input on second problem? i havent gotten much
thanks!
thx. can you answer these, i cant figure them out:
A square and an equilateral triangle have the same perimeter. Let A be the area of the circle circumscribed about the square and B be the area of the circle circumscribed about the triangle. Find A/B .
Let M be the midpoint of side AB of triangle ABC. Angle bisector AD of angle CAB and the perpendicular bisector of side AB meet at X . If AB=40 and MX=9 , then how far is X from line AC?(do this have anything to do with pythag?)
yes, it was RM. thanks
thanks!
in triangle RST, RS = 13. ST = 14, and RT 15. If M is midpoint of ST, what is M?
in this game, just post hypocrtictal statments
Example:
User A(first post): hi!
User B:dont use exclamation marks!
first post: HI PEOPLE!!!!
thanks. help on this?
a median of a triangle is a line segment from a vertex of a triangle to the midpoint of the opposite side of the triangle. The medians to the legs of a certain right triangle have lengths 13 and 19. What is the length of the hypotenuse of the triangle?
Find the length of the shortest altitude of a triangle with sides of lengths 10, 24, and 26.
yah i get it. you add some extra lengths to 5 and 8 and then you get similar triangles. i did not see that at first.
thanks! my teacher gives me hard hwk.
In ,
points X and Z are on AB and Y is on AC such that XY||BC and ZY||XC. If AZ=8 and , ZX=4 then what is XB ?In ,quadrilateral QRTS we have QR = 11,QS = 9 , and ST=2. Sides RQ and ST are extended past Q and S , respectively, to meet at point P. If PS=8 and PQ=5, then what is RT?
thanks. i hope it was no trouble for you to solve these problems
Thanks, i get it now.
What is the measure (in degrees) of the smallest interior angle of a triangle in which the exterior angle measures have the ratio 3:4:5?
hlep!
One interior angle of a triangle has a measure that is equal to the sum of the measures of the other two angles of the triangle. What is the measure of the smallest exterior angle of the triangle in degrees?
yes. It is in AoPS. How can we submit images other than hand drawing?
can mathisfun use asymptote to draw pictures?
aw, i was off by 30...
What is the number of degrees in the smaller angle formed by the hands of a clock at 5:44?
just started at geometry.
Two lines intersect such that the measure of each obtuse angle formed by the lines is three times the measure of each acute angle formed by the lines. What is the measure, in degrees, of an obtuse angle formed by the lines?
Thanks
The roots of the quadratic equation x^2 + ax + b are 2 + 3i and 2 - 3i. What is a + b?