Midterm Pretest #3

Front

Solve for y: 2y + 8 = 16

Back

y = 4

Front

What is the measure of angle DEF if angle D is 64 degrees and angle E is 46 degrees?

Back

70 degrees

Front

In triangle DEF, if m<F = x + 76, m<E = x + 46, and m<D = 64, find m<F.

Back

m<F = 73°

Front

Find the other endpoint of the line segment AC given endpoint A(-3, 9) and midpoint B(5, 3).

Back

(13, -3)

Front

Solve for X: 5X - 10 = 90

Back

x = 20

Front

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

Back

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

Front

If the sum of angles in a triangle is 180 degrees, what is the measure of angle G if angles F and H are 50 degrees and 60 degrees respectively?

Back

Angle G = 70 degrees

Front

What is the Pythagorean theorem?

Back

a² + b² = c², where c is the hypotenuse.

Front

If a line segment has endpoints (x1, y1) and (x2, y2), how do you calculate the distance between them?

Back

Distance = √((x2 - x1)² + (y2 - y1)²)

Front

What is the definition of a complementary angle?

Back

Two angles that add up to 90 degrees.