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Nookie1986 [14]
3 years ago
6

Angle B is 45% of angle A. Angle C is 35% of angle A. What is the measurement of angle A?

Mathematics
1 answer:
mafiozo [28]3 years ago
3 0

We assume , A, B, and C are angles of a triangle.
The sum of angles of a triangle is equal to 180º; therefore:
A+B+C=180º

B is 45% of angle A; then B=0.45A
C is 35% of anble A; Then C=0.35A

We can suggest this equation;
A+0.45A+0.35A=180
1.8A=180
A=180/1.8
A=100

Answer: The measurement of angle A is 100º.
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