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Math Help - Help with measures of angles

  1. #1
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    Help with measures of angles

    Help With this Lessons. Please Help. in attachments.
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  2. #2
    A riddle wrapped in an enigma
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    Quote Originally Posted by dgenerationx2 View Post
    Help With this Lessons. Please Help. in attachments.
    m\angle 3=90^{\circ} - A line perpendicular to one of two perpendicular lines is perpendicular to the other one also.

    m\angle 4=125^{\circ} - This angle is vertical to angle 1. Vertical angles are congruent.

    m\angle 5=125^{\circ} - Angle 1 and angle 5 are congruent because they are alternate interior angles.

    m\angle 6=55^{\circ} - Angles 5 and 6 make up a linear pair and are supplementary.

    m\angle 7=125^{\circ} - Angles 7 and 5 are vertical angles so they are congruent.
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  3. #3
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    Help With Special Right Triangles

    Here is my problem. I will send it in attachments but if you can't see the triangles in the attachment i will explain it.

    Fill in the missing side lengths and angle measures for each special right triangle below.

    Some of your answers will contain a square root () symbol.

    The 1st triangle is A 30-60-90 degree Triangle. the 30-60 Side Length is 8. But Whta Are The Others.

    The 2nd Triangle is A 40-40-90 degree Triangle. The 40-90 Side Length is 6. Wouldn't that make the other 40-90 side A 6 (Is This Right). So what is the missing side.

    Help. Please. I Will Be Very Grateful.
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  4. #4
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    Math lesson help

    can anybody see the pictures needed to answer this lesson because I can't see it. it is in the attachments
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  5. #5
    A riddle wrapped in an enigma
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    Quote Originally Posted by dgenerationx2 View Post
    Here is my problem. I will send it in attachments but if you can't see the triangles in the attachment i will explain it.

    Fill in the missing side lengths and angle measures for each special right triangle below.

    Some of your answers will contain a square root () symbol.

    The 1st triangle is A 30-60-90 degree Triangle. the 30-60 Side Length is 8. But Whta Are The Others.

    The 2nd Triangle is A 40-40-90 degree Triangle. The 40-90 Side Length is 6. Wouldn't that make the other 40-90 side A 6 (Is This Right). So what is the missing side.

    Help. Please. I Will Be Very Grateful.
    I'm sure you meant to say 45-45-90 instead of 40-40-90.

    (1) If the hypotenuse of a 30-60-90 right triangle = 8, then the short side (side opposite the 30 degree angle) is half of that or 4. The long side (side opposite the 60 degree angle) = the short side times the square root of 3 or 4\sqrt{3}

    (1) A 45-45-90 right triangle is isosceles. If one leg = 6, so does the other. The hypotenuse is equal to a leg times the square root of 2 or 6\sqrt{2}
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