Unit 5/Semester Exam Review

Front

Find the missing side in a right triangle when given the other two sides: a = 6, b = 8. What is c?

Back

c = 10 (Using Pythagorean theorem: a² + b² = c²)

Front

What is the measure of an angle in a triangle if the other two angles are 45° and 90°?

Back

The measure of the angle is 45° (Sum of angles in a triangle = 180°)

Front

Find h in the equation: 2h + 5 = 45. What is h?

Back

h = 20 (Subtract 5 from both sides, then divide by 2)

Front

If angle A = 30° and angle B = 60°, what is angle C in triangle ABC?

Back

Angle C = 90° (Sum of angles in a triangle = 180°)

Front

Which of the following is correct scientific notation for the number 20350?

Back

2.035 x 10^4 (Scientific notation requires one non-zero digit to the left of the decimal)

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height

Front

If a rectangle has a length of 10 cm and a width of 5 cm, what is its perimeter?

Back

Perimeter = 30 cm (P = 2(length + width))

Front

What is the value of x in the equation: 3x - 7 = 2?

Back

x = 3 (Add 7 to both sides, then divide by 3)

Front

What is the measure of ∠6 if ∠5 = 55° and they are supplementary?

Back

∠6 = 125° (Supplementary angles sum to 180°)

Front

What is the volume of a cube with a side length of 3 cm?

Back

Volume = 27 cm³ (Volume = side³)