Register
Login
Username
Password
Login
forgot your password?
Home
Forum
+0
Formulary
Maths
Help
Complex Numbers
Integral Calculus
Differential Calculus
Equations
Graphs
Linear Algebra
Number theory
Percent
Standard Functions
Statistics
Trigonometry
Unit Conversion
Units
About
Imprint
Privacy Policy
Terms of Service
Credits
Google+
Facebook
Contact Email
Post New Question
All Questions
+0
235692 Questions
0
26
1
+0
Incenter
In triangle $ABC$, let $I$ be the incenter of triangle $ABC$. The line through $I$ parallel to $BC$ intersects $AB$ and $AC$ at $M$ and $N$, respectively. If $AB = 5$, $AC = 5$, and $BC = 8$, then find the area of triangle $AMN$.
●
Vxrtate
Feb 12, 2024
0
30
1
+0
Triangles
In triangle $ABC$, let the perpendicular bisector of $BC$ intersect $BC$ and $AC$ at $D$ and $E$, respectively. If $BC = 20$ and $\angle C = 15^\circ$, then find the length of $BE$.
●
Vxrtate
Feb 12, 2024
0
33
1
+0
Geometry
In the diagram, $\overline{CX}$ bisects $\angle ACB$. Find the ratio of the area of triangle $BCX$ to the area of triangle $ACX$. Express your answer as a common fraction.
read more ..
●
Vxrtate
Feb 12, 2024
0
3
1
+0
Bisector
In triangle $ABC$, $\angle ABC = 90^\circ$, and $D$ is on side $\overline{BC}$ such that $\overline{AD}$ bisects $\angle BAC$. If $AB = 4,$ $BC = 3$, and $AC = 5,$ then find the area of $\triangle ADC$. Round your answer to the nearest integer.</
read more ..
●
Vxrtate
Feb 12, 2024
0
34
1
+0
Pyramid
A right pyramid has a square base. The area of each triangular face is one-third the area of the square face. If the total surface area of the pyramid is $432$ square units, then what is the volume of the pyramid in cubic units?
read more ..
●
Vxrtate
Feb 12, 2024
0
26
1
+0
Geometry
In triangle ABC, the angle bisector of angle BAC meets BC at D. If angle BAC=60 degrees, angle ABC=60 degrees and AD=24 then find the area of triangle ABC.
●
Vxrtate
Feb 12, 2024
0
3
1
+0
Area
Find the area of triangle ABC if AB=6, BC=8 and angle ABC=35 degrees
●
Vxrtate
Feb 12, 2024
0
35
1
+0
Triangle
In triangle $ABC$, $\angle A = 30^\circ$ and $\angle B = 90^\circ$. Point $X$ is on side $\overline{AC}$ such that line segment $\overline{BX}$ bisects $\angle ABC$. If $BC = 12$, then find the area of triangle $BXA$.
proyaop
●
Vxrtate
Feb 12, 2024
0
4
1
+0
Square in Triangle
A square is inscribed in a right triangle, as shown below. The legs of the triangle are 1 and 3. Find the area of the square.
●
Vxrtate
Feb 12, 2024
0
19
1
+101
Geometry Problem
Find the area of triangle ABC.
proyaop
●
Vxritate
Feb 12, 2024
0
23
1
+39
Help, and please explain
The two circles below are externally tangent. A common external tangent intersects line at Find line PQ at R. Find QR.
There are two circles touching, circle 1 has a point in the middle that extends to the border
read more ..
Boseo
●
rerebas
Feb 12, 2024
0
24
2
+101
Geometry Problem
Triangle DEF is equilateral. Find AE.
hairyberry
●
●
Vxritate
Feb 12, 2024
0
21
1
+0
Square
In square ABCD, P is on BC such that BP = 4 and PC = 1, and Q is on line CD such that DQ = 2 and QC = 3. Find sin angle PAQ.
●
Vxrtate
Feb 12, 2024
0
39
0
+0
help with triangles
In triangle PQR, M is the midpoint of PQ. Let X be the point on QR such that PX bisects angle QPR, and let the perpendicular bisector of PQ intersect AX at Y. If PQ = 36, PR = 22, QR = 26, and MY = 8, then find the area of triangle PQR
Vxrtate
Feb 12, 2024
0
20
5
+101
Geometry Problem
Semicircles are constructed on AB, AC, and BC. A circle is tangent to all three semicircles. Find the radius of the circle.
proyaop
●
●
●
●
●
Vxritate
Feb 12, 2024
Feb 11, 2024
+2
24
1
+0
Algebra
1) Write a simplified equation for the set of points that are equally far from (12, 0) as they are from (3, 0).
2) Write a simplified equation for the set of points that are exactly twice as far from (12, 0) as they are from
read more ..
●
Lilliam0216
Feb 11, 2024
0
30
0
+0
Tricky Triangle
In triangle $ABC,$ $AC = BC$ and $\angle ACB = 90^\circ.$ Points $P$ and $Q$ are on $\overline{AB}$ such that $P$ is between $A$ and $Q$ and $\angle QCP = 45^\circ.$ If cos ACP = 2/3, then find cos BCQ.
Vxrtate
Feb 11, 2024
0
41
0
+0
Cube in Pyramid
In tetrahedron ABCO, angle AOB = angle AOC = angle BOC = 90^\circ. A cube is inscribed in the tetrahedron so that one of its vertices is at O, and the opposite vertex lies on face ABC. Let OA = 1, OB = 1, OC = 1. Find the volume of
read more ..
Vxrtate
Feb 11, 2024
0
31
0
+0
Right triangle
In triangle $ABC,$ $\angle B = 90^\circ.$ Semicircles are constructed on sides $\overline{AB},$ $\overline{AC},$ and $\overline{BC},$ as shown below. If AB = 3 and BC = 4, then find AC.
Vxrtate
Feb 11, 2024
0
28
1
+1768
perimeter
The perimeter of the triangle below is an integer. What is the smallest possible value of the perimeter? (Assume that the triangle is non-degenerate.)
read more ..
●
bader
Feb 11, 2024
0
31
0
+1439
Algebra
Consider the two expressions $1$ and $\frac{2x+3}{2x+3}.$
a) Show that the two expressions represent equal numbers when $x=10.$
b) Explain why these two expressions do not represent equal numbers when $x=-\dfrac32.$
c) Show that these
read more ..
kittykat
Feb 11, 2024
0
22
1
+400
Quadratic Roots
Let $a$ and $b$ be the roots of the quadratic $x^2 - 5x + 3 = 2x^2 + 14x + 8.$ Find the quadratic whose roots are 1/(a + 1) and 1/(b + 1).
●
omgitsrne
Feb 11, 2024
0
31
1
+400
Quadratic equation
Fill in the blanks to make a quadratic whose roots are 5 and -5.
x^2 + ___x + ____
●
omgitsrne
Feb 11, 2024
«
latest
9426
9425
..
9135
9134
9133
9132
9131
..
2
1
»
Post New Question
0 Online Users
Top Users
+37159
ElectricPavlov
+33659
Alan
moderator
+15001
asinus
moderator
+9673
MaxWong
+2490
GingerAle
+1897
NotThatSmart
+1839
ABJeIIy
+1768
bader
+1533
parmen
+1443
blackpanther
+1439
kittykat
Sticky Topics
Some guidelines for question askers.
What is Happening 5
Again a number puzzle. Multiply in writing.
Loads of fun printable number and logic puzzles
¤¤¤¤Welcome To Web2.0calc¤¤¤¤
How to display latex properly
Feature Questions 1 - Started 8th May 19
How to upload a picture.
If a question is ticked that does not mean you cannot continue it.
Should you consider anything before you answer a question?
Geometry Thread
PUZZLES
LaTex Coding
/calculator/bsh9ex1zxj
Historical post!
What is happening? Wrap #4
Great Questions to Learn From 2
Great Answers to Learn From
Reference Material
Information for new people.