Answer: b. 70°
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The vertex angle of an isosceles triangle measures 40°. What is the measure of a base angle?
Sun Nov 15 2020 · answered. The vertex angle of an isosceles triangle measures 40°. What is the measure of a base angle? 40°. 70°. 100° . 140°. 2. See answers. report flag outlined.
Answer by edjones (8007) ( Show Source ): You can put this solution on YOUR website! let the vertex angle=v and a base angle=b. v=2b-40 given. 2b+v=180 all the angles of a triangle add up to 180 . profile. Brainly User. the 2 base angles are equal so the measure of 1 base angle = (180 - 42) / 2 . = 69 degrees. 2x + 3 = 69. 2x = 66. x = 33. each base angle measures 69 degrees. klondikegj and 246 more users …
Isosceles Triangle Calculator
Isosceles Triangles Flashcards | Quizlet
Isosceles Triangle Calculator
Isosceles Triangle Calculator
An isosceles triangle is a triangle with two equal sides. When two sides are equal two of its angles will be also equal. This are the base angles of the triangle. Let one of the base angle = x . Vertex angle is given a 40°. Angles in a triangle add up to 180°. ∴ 180 = 40 + x + x. 180 = 40 + 2x. 2x = 180 - 40.
Question 921727: an isosceles triangle has a vertex angle of 40 degrees .what is the measure of the base angle? Answer by MathLover1 (17368) ( Show Source ): You can put this solution on YOUR website! an isosceles triangle is a triangle that has sides of equal length=>. base angles are equal too. if base angle is and a vertex angle of degrees then. [Answe...
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