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Sagot :
Answer:
Step-by-step explanation:
8x + 2 + 70 + 60 = 180 {angle sum property of triangle}
8x + 132 = 180
8x = 180 -132
8x = 48
x = 48/8
x = 6
Answer:
- x = 6
Solution:
Here, we are given a triangle with 2 of its angle , the third angle is in the form of variable equation .
We will use the angle sum property of triangle to find the value of variable i.e x in the given triangle.
Here,
➙ ∠A = 70°
➙ ∠B = 60°
➙ ∠C = 8x + 2
- Angle sum property
It states that the sum of all angles of a triangle is 180°
ㅤㅤㅤ➙ ∠A + ∠B + ∠C = 180°
ㅤㅤㅤ➙ 70° + 60° + ∠C = 180°
ㅤㅤㅤ➙ 130° + ∠C = 180°
ㅤㅤㅤ➙ ∠C = 180° - 130°
ㅤㅤㅤ➙ ∠C = 50°
ㅤㅤㅤ➙ 8x + 2 = 50
ㅤㅤㅤ➙ 8x = 50 - 2
ㅤㅤㅤ➙ 8x = 48
ㅤㅤㅤ➙ x = 48 / 8
ㅤㅤㅤ➙ x = 6
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