To determine the length of diagonals.
Answer to Problem 14WE
Length of diagonal AC is 7.83
Length of diagonal BD is 11.16
Explanation of Solution
Given information :
Two sides of parallelogam are 6cm and 8 cm
Given angle is
We know that the adjacent angles of parallelogram are supplementary.
Hence,
Use cosine law to determine the length.
Cosine formula states that,
Putting values we get,
Hence length of diagonal AC is 7.83
Similarly,
Length of diagonal BD is 11.16
Chapter 12 Solutions
Algebra and Trigonometry: Structure and Method, Book 2
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