To find the perimeter of the triangle, we need to calculate the distance between each pair of points and then sum them up.
The distance between R and S:
√((-9 - 10)^2 + (6 - 6)^2) = √(19^2) = 19 inches
The distance between S and T:
√((10 - 10)^2 + (6 + 7)^2) = √(7^2) = 7 inches
The distance between T and R:
√((10 + 9)^2 + (-7 - 6)^2) = √(19^2 + 13^2) = √(670) = 25.9 inches (rounded to the nearest inch, this is 26 inches)
Adding these distances together:
19 + 7 + 26 = 52 inches
Rounded to the nearest inch, the perimeter of the triangle is 52 inches. None of the provided responses are correct.
A triangle is shown in the figure below. What is the perimeter? Units are inches. Round to the nearest inch.
R is (-9,6) S is (10,6) T is (10, -7)
Responses
49 in
51 in
57 in
55 in
1 answer