The y axis is a line of symmetry for a triangle. The coordinates of two of its vertices are (-3, 2) and (0,5)
A. What are the coordinates of the third vertex?
B. What is the area of the triangle?
Question
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Answer:
- See below
Step-by-step explanation:A)One of the points on the y-axis (0, 5).It means the other vertices are symmetrical:- (-3, 2) and (3, 2)
B)The height of the triangle is the difference of the y-coordinates:- h = 5 – 2 = 3
The base of the triangle is the distance between the symmetric vertices:- b = 3 – (-3) = 6
The area is:- A = 1/2bh = 1/2*6*3 = 9 units²
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Answer:(3,2)Step-by-step explanation:since it symmetrical over the y axis it will be the same as the first point except the x will be the opposite