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horsena [70]
3 years ago
15

Find the value of x and y

Mathematics
2 answers:
Tasya [4]3 years ago
7 0
130 + 2x = 180
2x = 180 - 130
2x = 50
x = 50/2
x = 25

2x + 4y + 54 = 180
2(25) + 4y + 54 = 180
50 + 4y + 54 = 180
4y + 104 = 180
4y = 180 - 104
4y = 76
y = 76/4
y = 19

answer: x = 25 and y = 19

Nina [5.8K]3 years ago
3 0
130 + 2x = 180        Sum of angles in a straight line

2x = 180 - 130

2x = 50

x = 50/2

x = 25°

In a triangle:

Exterior angle = Sum of opposite interior angle

130 = 4y + 54

4y + 54 = 130

4y = 130 - 54

4y = 76

y = 76/4

y = 19°

Hope this helps.
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[Rectangular Prism]
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All we know is that the volume is 210 cubic meters. We can choose whatever we want for the dimensions to force it to work! We're free to do what we want!
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I like 10, that's a nice number. Let's make L = 10.
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Same idea, different formula. For a triangular prism, the volume is
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