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pantera1 [17]
3 years ago
14

Please help me i am stuck​

Mathematics
2 answers:
Nikitich [7]3 years ago
6 0

Answer:

C. 75°

Step-by-step explanation:

the sum of interior angles of a triangle is 180°

that means:

∠A + ∠B + ∠C = 180°

3x + 60 + 5x = 180°

and now to find x:

3x + 60 + 5x = 180

3x + 5x = 180 - 60

8x = 120

x = 120/8

x = 15

so

∠A= 3 * 15 = 45°

∠B = 60°

∠C = 5 * 15 = 75°

the value of C:

5 * 15 = 75

kogti [31]3 years ago
3 0
The answer to that is B it’s 60
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