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Correct Answer: A
Correct Answer: A
Method / Topic: Geometry
The answer uses the formula that matches the figure and target quantity.
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Detailed Explanation
Correct Answer: A
Method / Topic: Geometry
The equal base angles share 180° - 40° = 140°, so each is 70°.
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Learn + Solve: Shortcut, Trap & Fast Route Click to view shortcut, steps, and common mistake
Shortcut used, common trap, and the fastest solving route
- Fix the shape.
- Choose the matching formula.
- Substitute values with units.
An isosceles triangle has a vertex angle of 40°. What is the measure of each base angle?
Explanation
Correct Answer: A
Method / Topic: Geometry
The answer uses the formula that matches the figure and target quantity.
Short Explanation
Detailed Explanation
Correct Answer: A
Method / Topic: Geometry
The equal base angles share 180° - 40° = 140°, so each is 70°.
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