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If the vertical angle of a isosceles triangle is 40°, then measure of other two angles will be
  • a)
    60°, 60°
  • b)
    80°, 80°
  • c)
    70°, 70°
  • d)
    45°, 45°
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
If the vertical angle of a isosceles triangle is 40°, then measure of ...
**Explanation:**

An isosceles triangle is a triangle that has two sides of equal length. In an isosceles triangle, the angles opposite the equal sides are also equal.

Given that the vertical angle of the isosceles triangle is 40°, we can determine the measures of the other two angles.

Let the base angles of the isosceles triangle be x°. Since the triangle is isosceles, both base angles are equal.

**Step 1: Set up an equation:**
The sum of the angles in any triangle is always 180°. So, we can set up an equation to find the measure of the base angles.

x + x + 40° = 180°

Simplifying the equation:
2x + 40° = 180°

**Step 2: Solve for x:**
Subtract 40° from both sides of the equation:
2x = 180° - 40°
2x = 140°

Divide both sides of the equation by 2:
x = 70°

**Step 3: Find the measures of the other two angles:**
Since the base angles are equal, the measures of the other two angles in the isosceles triangle are both 70°.

Therefore, the correct answer is option C: 70°, 70°.
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Community Answer
If the vertical angle of a isosceles triangle is 40°, then measure of ...
Correct answer is C as the measure of angles in a triangle should be 180* as per the ASP rule.(AngleSumProperty) so the sum will be 70+70 =140 and 140+40 =180*....
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If the vertical angle of a isosceles triangle is 40°, then measure of other two angles will bea)60°, 60°b)80°, 80°c)70°, 70°d)45°, 45°Correct answer is option 'C'. Can you explain this answer? for Class 7 2025 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about If the vertical angle of a isosceles triangle is 40°, then measure of other two angles will bea)60°, 60°b)80°, 80°c)70°, 70°d)45°, 45°Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 7 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If the vertical angle of a isosceles triangle is 40°, then measure of other two angles will bea)60°, 60°b)80°, 80°c)70°, 70°d)45°, 45°Correct answer is option 'C'. Can you explain this answer?.
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