Geometry - 1st Semester Review

Front

What is the midpoint formula for a segment with endpoints (x1, y1) and (x2, y2)?

Back

Midpoint = ((x1 + x2)/2, (y1 + y2)/2)

Front

Find the midpoint of the segment with endpoints (4, 12) and (-6, 14).

Back

(-1, 13)

Front

What is the value of X if 2X - 3 = 11?

Back

X = 7

Front

What is the sum of the interior angles of a triangle?

Back

180 degrees

Front

If angle JHG measures 161 degrees, what are the measures of angles GHK and KHJ if they are complementary?

Back

m∠GHK = 80.5 degrees, m∠KHJ = 80.5 degrees

Front

What does SSS stand for in triangle congruence?

Back

Side-Side-Side; it means all three sides of one triangle are equal to all three sides of another triangle.

Front

What is the definition of congruent triangles?

Back

Triangles that have the same size and shape; their corresponding sides and angles are equal.

Front

What is the value of the exterior angle of a triangle?

Back

The exterior angle is equal to the sum of the two opposite interior angles.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

What is the formula for the area of a triangle?

Back

Area = (1/2) * base * height