Transformations
Angles
Triangles & Congruency
Proofs
Random
100
Find the coordinates of the vertices of T_(-2,4)(R_90°(triangleLHS)) where L(-2,4), H(1,0), and S(-3,-2).
L'(-6,2), H'(-2,5), and S'(0,1)
100
If mangle1 = 107°, what is the value of mangle4 + mangle6? What type of angles are angle4 and angle6?
They are alternate interior angles and the value of
angle4+angle6=146°.
100
By what postulate, if any, is triangleABC cong triangle DBC if triangleABD is isosceles.
Not enough information.
100
Given: angleCED cong angleCBA and BC cong EC. Prove: AB cong DE.
100
What has three feet but cannot walk?
A yardstick
200
Find the single transformation of the general point (x,y) given r_(y=x)(R_(90°)(T_(-1,3)(R_270°(x,y)))).
(y-1,x-3)
200
If the ratio of mangleBEC and mangleCED is 7:2 and mangleAED = 168°, what is mangleAEC?
mangleAEC=148°
200
Find the length of AB and AC given that triangleABC is isosceles with base BC, has a perimeter of 232 feet, AD is a perpendicular bisector, BD=3x+10 and CD=2x+24.
AB=AC=64 feet
200
Given: BC bisects AD and angleABE cong angleDCE.
Prove: CD cong AB
200
What building has the most stories?
A library
300
Given A(2,5), find the location of R_(90° about (-1,2))(r_(x=0)(R_(270° about (1,3))(A))).
A'(-1,0)
300
Given that BD is an angle bisector to angleCDA, and mangleDAB=4x+17 and mangleCDA=10x+20, find the value of angleDCB.
mangleDCB=73°
300
Suppose that QO and PN are medians. If MQ=2y+20 QN=12x-8 and MP=4x+2 and PO=y+10, and NO=54. Find the perimeter of triangleMNO.
The perimeter of
triangleMNO=138.
300
Given: P is the midpoint of MO and angleLPM cong angle LPO.
Prove: LP is an angle bisector for angleMLO.
300
There was a plane crash and every single person died. Who survived?
The couples.