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liubo4ka [24]
3 years ago
14

For BRAINILY :) Triangle angle-sum theorem

Mathematics
1 answer:
Tcecarenko [31]3 years ago
6 0
Answer:

s = 53

Step-by-step explanation:

We know that the three angle measures in a triangle add up to 180°. so…

(s - 20°) + 2s + 41° = 180°

Step 1. Subtract 41 from both sides

(s - 20°) + 2s = 139°

Step 2. Combine like terms

3s - 20 = 139°

Step 3. Add 20 from both sides

3s = 159

Step 4. Solve for s

s = 159/3

s = 53
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Step-by-step explanation:

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