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nasty-shy [4]
3 years ago
10

Triangle ABC has the angle measures shown.

Mathematics
1 answer:
larisa [96]3 years ago
7 0

Answer:

m∠A = 20°

Step-by-step explanation:

Triangle ABC has the following angle measures:

  • m∠A = 2x°
  • m∠B = 5x°
  • m∠C = 11x°

We know that the addition of the angles of a triangle makes 180°, therefore:

m∠A + m∠B + m∠C = 180°

Replacing with data and solving for x:

2x + 5x + 11x = 180

18x = 180

x = 180/18

x = 10°

Which makes the angles:

m∠A = 2*10 = 20°

m∠B = 5*10 = 50°

m∠C = 11*10 = 110°

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3 years ago
What percent of 1600 is 2?
Misha Larkins [42]

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3 years ago
PLEASE PLEASE PLEASE HELP!!
Marta_Voda [28]
Okay I'll try to show it step by step

Step 1. So first you need to recognise that the diagram is a right angled triangle, with the right angle being at the bottom. This means we can do Pythagoras' Theorem.

Step 2. Now that you know you can use Pythagoras' Theorem, you can apply it. If you don't know, the theorem is a² + b² = c², with, in this case, a being 5 and b being 8. This means we can do 5² + 8² = 25 + 64 = 89.

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I hope this helps!
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Regular= 3/5  equivalent= 6/10  just multiply the top and bottom by the same number.

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