Geometry Notation
How do you correctly name a point labeled A?
Point A
Find the distance between points at 2 and 11 on a number line.
9
If A, B, and C are collinear and B is between A and C, AB = 4 and BC = 9. Find AC.
13
If m∠A = 45°, what does the “m” stand for?
Measure
Which symbol means “is congruent to”?
≅
Name the notation for the line through points M and N.
↔MN or line MN
Point A is at -4 and point B is at 7. Find AB.
11
If JK = 18 and KL = 7, find JL when K is between J and L.
25
If m∠1 = 30° and m∠2 = 50°, find m∠ABC if the two angles are adjacent.
80°
Which symbol means “is equal to”?
=
Name the notation for the ray that starts at P and passes through Q.
→PQ or ray PQ
Point C is at 12 and point D is at -9. Find CD.
21
M is between N and P. NP = 30 and MP = 12. Find NM.
18
m∠DEF = 120° and m∠DEG = 45°. Find m∠GEF.
75°
True or False: Two segments can be congruent even if they are in different locations.
True
What is the notation for the segment with endpoints X and Y?
¯XY or segment XY
E is at 3. F is at x. If EF = 10 and F is to the right of E, what is x?
13
AB = 2x + 3, BC = 7, and AC = 20. Find x.
x = 5
m∠1 = 3x and m∠2 = 5x. If together they form a 72° angle, find x.
x=9
If ¯AB ≅ ¯CD and AB = 14, what is CD?
14
Name the angle shown with points A, B, and C when B is the vertex.
∠ABC or ∠CBA
G is at -8. H is at x. If GH = 15 and H is to the left of G, what is x?
-23
DE = 3x - 4, EF = x + 6, and DF = 26. Find x.
x = 6
m∠ABC = 4x + 10 and m∠CBD = 2x - 4. If m∠ABD = 60°, find x.
x=9
Explain the difference between congruence and equality.
Congruence compares figures with the same size and shape, while equality compares numerical values or measures.