Let's solve each of the first four questions from your
Quizizz Geometry Vocabulary quiz. I'll explain each one step by step.
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Question 1:
Figure: An angle that is less than 90°, opening upward to the right.
Options:
- A) acute angle
- B) right angle
- C) obtuse angle
- D) straight angle
✔ Answer: A) acute angle
Explanation:
An
acute angle is an angle that measures
less than 90 degrees. The figure shown is clearly smaller than a right angle (which is 90°), so it’s an
acute angle.
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Question 2:
Figure: A straight line with a point in the middle, forming a straight angle.
Options:
- A) straight angle
- B) right angle
- C) acute angle
- D) obtuse angle
✔ Answer: A) straight angle
Explanation:
A
straight angle measures exactly
180 degrees, forming a straight line. This figure shows two rays pointing in opposite directions from a common vertex — that’s a
straight angle.
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Question 3:
Figure: An angle that opens wide, greater than 90° but less than 180°.
Options:
- A) right angle
- B) obtuse angle
- C) straight angle
- D) acute angle
✔ Answer: B) obtuse angle
Explanation:
An
obtuse angle is an angle that measures
more than 90 degrees but less than 180 degrees. The angle shown is clearly wider than a right angle but not a full straight line — so it's
obtuse.
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Question 4:
Figure: Two perpendicular lines forming a corner with a small square symbol (indicating 90°).
Options:
- A) straight angle
- B) right angle
- C) acute angle
- D) obtuse angle
✔ Answer: B) right angle
Explanation:
The
small square at the vertex indicates a
90-degree angle, which is a
right angle. Right angles are exactly 90° and are often marked with this square symbol.
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✔ Final Answers:
1.
A) acute angle
2.
A) straight angle
3.
B) obtuse angle
4.
B) right angle
Let me know if you'd like help with question 5 or the rest of the quiz!
Parent Tip: Review the logic above to help your child master the concept of geometry 7th grade worksheet.
