Geometry Flashcards
7 cards from real Regents 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 circle, a central angle measures 80°. What is the measure of the arc it intercepts?
Answer: 80°
A central angle equals the measure of its intercepted arc, so the arc is 80°.
What is the volume of a rectangular prism with length 5 m, width 3 m, and height 4 m?
Answer: 60 m³
Volume = l × w × h = 5 × 3 × 4 = 60 m³.
Two secants are drawn from an external point. The external segment of the first secant is 4 and its whole length is 9. The external segment of the second secant is 3. What is the whole length of the second secant?
Answer: 12
Secant-secant theorem: 4 × 9 = 3 × x, so x = 12.
Which transformation preserves both shape and size (is an isometry)?
Answer: Reflection
Reflection is a rigid motion that preserves all distances and angles.
A trapezoid has bases of 8 cm and 14 cm and a height of 5 cm. What is its area?
Answer: 55 cm²
Area = ½ × (8 + 14) × 5 = 55 cm².
In triangle ABC, angle A = 45° and angle B = 75°. What is the measure of angle C?
Answer: 60°
Angle C = 180° − 45° − 75° = 60°.
The diagonal of a square is 10 cm. What is the side length of the square?
Answer: 5√2 cm
For a square, diagonal = s√2, so s = 10 ÷ √2 = 5√2 cm.