Answer:
84°
Step-by-step explanation:
Let the measures of the triangle be 5x, 7x, 3x.
By interior angle sum postulate of a triangle.
5x + 7x + 3x = 180°
15x = 180°
x = 180°/15
x = 12°
7x = 7*12°= 84°
Measure of the largest angle = 84°
Answer:
The answer is A. 105
Step-by-step explanation:
it's more tilted so it can't be a lower number, the only option is 105
x^2+14x = (x+7)^2
7^2 = 49
so you would add 49 to both sides