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Bond [772]
3 years ago
10

How do i solve this equation a over c is equal to d over a to solve for a

Mathematics
2 answers:
juin [17]3 years ago
6 0
\frac{a}{c} = \frac{d}{r} \\ \\ a \times r = c \times d \\ \\ a= \frac{cd}{r}\\ \\ \boxed{ \red{ \bold{a= \frac{cd}{r} }}}
Ray Of Light [21]3 years ago
6 0

Hey there!!

Given equation :

a / c = d / r

Cross multiplication :

... ar = cd

Divide by r on both sides

... a = cd / r

Hope this helps!

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In the accompanying figure, triangle ABC has coordinates A(0,3), B(7,3), C(7,7). What is the area of triangle ABC in square unit
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We know area of triangle = \frac{1}{2}  * base * height

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Now we find the distance between A and B

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A(0,3), B(7,3)

Distance AB = \sqrt{(7-0)^2 + (3-3)^2}

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Answer:

2187

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