Members of the drama club sold T-shirts for thier upcoming musical. Of the 80 shirts sold , 45% were size medium . how many of the T-shirts sold were size medium?

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Ответ:

chloedonyes

04.01.2023

Mathematics

Let

A=10

B=7

C=15

we know that

Applying the Pythagoras Theorem

case 1 )

$C^{2} =A^{2} +B^{2}$

then

Is a right triangle

case 2 )

$C^{2} A^{2} +B^{2}$

then

Is a obtuse triangle

case 3 )

$C^{2} < A^{2} +B^{2}$

then

Is an acute triangle

$C^{2} =15^{2} \\ C^{2} =225\\ A^{2} +B^{2}=10^{2} +7^{2}\\ A^{2} +B^{2} =149\\ C^{2} A^{2} +B^{2}$

therefore

the answer is

The triangle is obtuse

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