2 years ago

ABCD is quadrilateral. work out the length of cd

Mathematics

1 answer:

musickatia [10]2 years ago

7 0

Answer:

25.97cm

Step-by-step explanation:

BD=12/(sin35)= 20.92cm

using sine rule

DC/sin102 = BD/sin52

DC/sin102 = 20.92cm/sin52

CD = (20.92/sin52)× sin102 = 25.97cm

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katovenus [111]

$\bf \textit{area of an equilateral triangle}\\\\
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s=length~of\\
\qquad a~side\\
-------\\
s=6
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\\\\\\
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I know the answer just need someone explain to me how to solve it

Vinvika [58]

The logarithm of a quotient can be written as a difference of logarithms:

$\log_3\left(\dfrac uv\right) = \log_3(u) - \log_3(v)$

You can also think of this as a combination of the product-to-sum and reciprocal/power properties of logarithms:

$\log_3\left(\dfrac uv\right) = \log_3\left(u \times \dfrac1v\right) = \log_3(u) + \log_3\left(\dfrac1v\right) = \log_3(u) - \log_3(v)$

To summarize,

$\log_b(mn) = \log_b(m)+\log_b(n)$

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$\log_b\left(m^n\right) = n \log_b(m)$

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