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  • 1) 5a2) a +363) a² +6²+ c²4) a-6² + ²5) ? +6²-4c²...

1) 5a
2) a +36
3) a² +6²+ c²
4) a-6² + ²
5) ? +6²-4c²​

Answers

  • Réponse publiée par: meteor13
    Pls check your question
  • Réponse publiée par: elaineeee

    answer:

    vertex angle is 66°

    step-by-step explanation:

    in an isosceles triangle the two base angles are congruent. the third angle is the vertex angle. in any triangle the sum of the three angles will be 180°.

    let v = the vertex angle

    let b = each of the base angles

    v + b + b = 180°

    v = b + 9 (the vertex angle of an isosceles triangle is 9 degrees more than a base angle)

    substitute b + 9 for v, in the equation v + b + b = 180°

    (b + 9) + b + b = 180° combine like terms to simplify

    3b + 9 = 180° subtract 9 from both sides

    3b = 171° divide both sides by 3

    b = 57°

    v = b + 9° => v = 57° + 9° = 66°

    check: 57° + 57° + 66° = 180°

  • Réponse publiée par: danigirl12

    answer:

    Step-by-step explanation:

    Please google it on the internet

  • Réponse publiée par: elaineeee

    answer:

    Step-by-step explanation:

    140

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1) 5a2) a +363) a² +6²+ c²4) a-6² + ²5) ? +6²-4c²​...