Geometry Flashcards
7 cards from real MPT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Geometry flashcards as text
In a 30-60-90 triangle, the shortest leg has length 5. What is the length of the hypotenuse?
Answer: 10
In a 30-60-90 triangle, the hypotenuse is twice the length of the shortest leg, so it is 2 × 5 = 10.
In a 45-45-90 triangle, one leg has length 7. What is the length of the hypotenuse?
Answer: 7√2
In a 45-45-90 triangle, the hypotenuse = leg × √2 = 7√2.
What is the surface area of a cube with side length 4?
Answer: 96
A cube has 6 faces, each with area 4² = 16, so surface area = 6 × 16 = 96.
A sector of a circle has a central angle of 90° and radius 8. What is the arc length? (Use π ≈ 3.14)
Answer: 12.56
Arc length = (θ/360°) × 2πr = (90/360) × 2 × 3.14 × 8 = (1/4) × 50.24 = 12.56.
Two parallel lines are cut by a transversal. One pair of alternate interior angles measures (3x + 10)° and (5x − 20)°. What is x?
Answer: 15
Alternate interior angles are equal: 3x + 10 = 5x − 20, so 30 = 2x, giving x = 15.
What is the volume of a cylinder with radius 3 and height 5? (Use π ≈ 3.14)
Answer: 141.3
Volume = πr²h = 3.14 × 9 × 5 = 141.3.
A line passes through the origin with slope 2. Which equation represents this line?
Answer: y = 2x
A line through the origin has a y-intercept of 0, so the equation is y = 2x.