High School Geometry Area

Formed by two rays that share a common end point

• Angle

• Opposite Rays

• Congruent

• Line

name the plane that is highlighted in the diagram.

• Plane WVQ

• Plane TWS

• Plane PSR

• Plane SRW

Are these triangles congruent?

• Yes, by ASA

• Yes, by SAS

• No they are not congruent

• Not enough information to know for sure

Identify the transformation from ABCD to A'B'C'D'.

• Translation

• Reflection across the x-axis

• Reflection across the y-axis

• 90^o counter clockwise rotation

What is the justification?

• Definition of an Angle Bisector

• Complementary Angles Theorem

• Definition of a Right Angle

• Angle Addition Postulate

What is the missing statement in the proof?

• 2m∠ABD=m∠ABD+m∠ABD

• m∠ABD=m∠DBC

• m∠ABC=m∠ABC

• m∠ABD+m∠ABD=m∠ABD+m∠DBC

Determine whether the polygons are similar, if they are, write the similarity statement and find the scale factor from figure A to Figure B.

• Not similar

Focus in on the 70^o angle...which two sides are "identified" in the figure?

• opposite

  (an unknown)

• hypotenuse

  (4 units)

• adjacent

  (no marking)

• None of these

So we should have found;

opposite side = ?

hypotenuse = 4

(remember...related to the 70^o angle!!!) Which trig ratio uses these two sides?

• sine (sin)

• cosine (cos)

• tangent (tan)

• None of these

What is the measure of the angle "?"

• 70º

• 90º

• 105º

• 210º