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2 years ago

What is the area of a trapezoid ABCD with bases AB and CD , if: AB=10cm, BC=DA=13cm, CD=20cm

Mathematics

1 answer:

aliya0001 [1]2 years ago

7 0

Step-by-step explanation:

to find height :

draw a height from A to CD

height = (13) 2 - 5) 2 = 12 Cm

area = 10+20 /2 X 12= 180 cm 2

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2 years ago

H function is even, odd, or neither. b. g(x) = x² - 2 Is it odd or even

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$g(x) = x^2 - 2 \text{ is even function }$

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$g(x) = x^2 - 2$

We have to find whether the above function is odd or even

If a function is: y = f(x)

If f(-x) = f(x), the function is even

If f(-x) = - f(x), the function is odd

Which is,

$\mathrm{Even\:Function:\:\:A\:function\:is\:even\:if\:}f\left(-x\right)=f\left(x\right)\mathrm{\:for\:all\:}x\in \mathbb{R}\\\\\mathrm{Odd\:Function:\:\:A\:function\:is\:odd\:if\:}f\left(-x\right)=-f\left(x\right)\mathrm{\:for\:all\:}x\in \mathbb{R}$

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