3 years ago

Find the missing length of the triangle.

Mathematics

1 answer:

egoroff_w [7]3 years ago

5 0

Step-by-step explanation:

apply Pythagorean theorem. if a^2 + b^2 = c^2 then

b = √(15^2 - 9^2) = 12.

12 is answer

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Answer:

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Step-by-step explanation:

The three straight lines in the sides of the triangle means that ALL 3 SIDES ARE EQUAL.

This is an equilateral triangle. So all 3 angles are equal.

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The top angle is given as "2x + 10", thus we can say "2x + 10" is equal to 60 degrees. Now we equate and solve for x:

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