Answer:
6
Step-by-step explanation:
since it's a right triangle you can use the Pythagorean Theorem
2.7² + b² = 6.5²
7.29 + b² = 42.25
b² = 34.96
b = which equals 6 when rounded to the nearest tenth
The formula for a circumference of a circle is πd.
1 answer:
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Answer:
See solution below
Step-by-step explanation:
Given the expression
Recall that
cos x = sin(90-x)
cos(x+30 ) = sin (90-(x+30)
= sin(90-x-30)
= sin(60-x)
Substitute