Kat is painting the edge of a triangular stage prop with reflective orange paint. The lengths of the edges of the triangle are (3x – 4) feet, (x2 – 1) feet, and (2x2 – 15) feet. What is the perimeter of the triangle if x = 4?
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Let the sides be a, b, and c.
a = 3x - 4
b = x² - 1
c = 2x² - 15
x = 4
Substituting the value of x :
a = 3 × 4 - 4 = 8 feet
b = 4²-1 = 15 feet
c = 2 × 4² - 15 = 17 feet
Perimeter = a + b + c
= 17 + 15 + 8 = 40 feet
Answered by
0
Answer:
40 feet
Step-by-step explanation:
did the test
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