Using the Pythagorean Theorem, give an example of three sides of a right triangle
1 answer:
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A=1/2ab
Replace the variables with their value
15=1/2(3/2)b
Multiply 1/2 and 3/2
15=3/4b
Divide 3/4 on both sides
15/(3/4) is the same thing as
45/4=b
Replace the variables with their value
15=1/2(3/2)b
Multiply 1/2 and 3/2
15=3/4b
Divide 3/4 on both sides
15/(3/4) is the same thing as
45/4=b
Answer:
x = 9.4
Step-by-step explanation:
(see attached for reference on cosine rule)
by cosine rule
x² = 8² + 15² - 2(8)(15) cos 33°
x² = 64 + 225 - 201.281
x² = 87.719
x = √87.719
x = 9.366
x = 9.4 (nearest tenth)
