# MATH

In an isosceles trapezoid the length of a diagonal is 25 cm and the length of an altitude is 15 cm. Find the area of the trapezoid.

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1. you need the bases first.

draw the sketch. label the top base a, the bottom c.
now notice on c, it is longer than a by 2*k, where k is the length of the base below end triangles.

Pyth: (c-k)^2=25^2-15^2
or c-k=20cm
but c=a+2K

Now the median length:
median=(a+c)/2=(c-2k+c)/2
=2c-2k=2(c-k)=20cm

area=median*height=20cm*15cm
=300cm^2

check my math.

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2. You are correct, the answer is 300cm^2

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3. You are correct. Thank you.

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4. hi

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5. Do you think you could attach a labeled diagram? That would be greatly helpful.

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6. I did this:

Pythagreon: (c-k)^2=25^2-15^2
or c-k=20cm
but c=a+2K

Area
area=median*height=20cm*15cm
=300cm^2

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7. U GUYS ARE SEARCHING UP RUSSIAN MATH FINAL TEST QUESTIONS SHAME ON YOU

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8. Hey man I got to get that 100

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9. You know he is right

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