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wariber [46]
3 years ago
7

GEOMETRY HELP PLEASE!!!!!!! Josh is building an enclosure with recycled cardboard for his collection of model cars his design is

as shown below:
What is the length of side BC in inches?

A) 14
B) 43
C) 49
D) 63

Mathematics
1 answer:
spayn [35]3 years ago
3 0
63 because our only evidence is 56 divided by 8 which is 7 so 7 x 9 equals 63
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In a triangle, the sum of the measures of the first two angles is 12 less than the measure of the third angle. In addition, the
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The measure of the three angles are  56, 28 , 192 degree

<h3>What is a Triangle ?</h3>

A triangle is a polygon with three sides , three vertices an three angles.

It is given to make system of equations

Let the measure of the first , second and third angle be x, y and z

the sum of the measures of the first two angles is 12 less than the measure of the third angle.

x +y = z -12  ----1

the measure of the first angle is twice as big as the measure of the second angle.

x = 2y

Now equation 1 will be

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On solving the system of equation 1, 2

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Therefore the measure of the three angles area  56, 28 , 192 degree.

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