joshuabm42407
21.02.2020 •
Mathematics
Sandy finds a sunvisor that was originally $12.50. What is the sale price?
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Ответ:
Step-by-step explanation: In this problem, we are given that the measures of the angles of a triangle are in the ratio 5:7:8 and we are asked to find the measure of each angle.
When the ratio of the angles is 5:7:8, we can represent the angles as 5x, 7x, and 8x.
5x ⇒ first angle
7x ⇒ second angle
8x ⇒ third angle
Since the measures of the angles of a triangle add to 180°, we can set up an equation.
5x + 7x + 8x = 180
20x = 180
÷20 ÷20
X = 9
Now to find the measures of each of our angles, we simply plug 9 back in for x.
5x ⇒ first angle = 45°
7x ⇒ second angle = 63°
8x ⇒ third angle = 72°