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velikii [3]
3 years ago
7

The formula for the area,A, of a trapezoid is shown below, where ݄H represents its height and b1 and b2

Mathematics
1 answer:
emmainna [20.7K]3 years ago
4 0
One equivalent is A=h( \frac{ b_{1}+b_{2} }{2})

Another example is A= \frac{(b_{1}+b_{2})(h)}{2}
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Find the measure of C to the nearest degree.
Alisiya [41]

Let the ∠C be : θ

From the figure, We can see that the Side which is opposite to angle θ is measuring 7 units

Also, We can notice that Hypotenuse is 11 units

As we are dealing with opposite and hypotenuse, we can clearly use Sinθ to find out the angle θ

We know that :

\bigstar \ \ \boxed{\sf{Sin\theta = \dfrac{Opposite \ Side}{Hypotenuse}}}

\implies \sf{Sin\theta = \dfrac{7}{11}}

\implies \sf{\theta = Sin^{-1}\bigg(\dfrac{7}{11}\bigg)}

\implies \sf{\theta = 39.52^{\circ}}

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