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3 years ago

I need help geometry ASAP. 30 points.

Mathematics

1 answer:

Amiraneli [1.4K]3 years ago

3 0

10a) x = 81 y = 30.5

Isolate y

2y + 20 = x

2y = x- 20

y = x/2 - 10

Plug in for y

4y - 6 + 64 + x = 180

4(x/2 - 10) - 6 + 64 + x = 180

4x/2 - 40 -6 + 64 + x = 180

4x/2 + 18 = 180

4x/2 = 162

4x = 324

x = 81

Plug in for x

2y + 20 = x

2y + 20 = 81

2y = 61

y = 30.5

10b) x = 47

Isolate x

4x -12 = 3x + 35

x - 12 = 35

x = 47

11)

2. definition of parallelogram

3. < ABD ≅ < BDC

4. < CBD ≅ <BDA

6. I'm not 100% sure what this one is but I think it has something to do with the line of symmetry.

Hope this helps! ;)

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