Here is a central angle that measures 1.5 radians. Select all true statements. Question 1 options: A) The area of the whole circ
1 answer:
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Answer:
A = 3/5
Step-by-step explanation:
At the outset, the question doesn't give us a figure to refer to nor does it tell us if this is a right angled triangle. However we observe that both sin A and tan A have the numbers 3, 4 and 5. We recognize this to be consistent with 3-4-5 standard right angled triangle.
Hence we can guess that it is probably a right angled triangle, but we should do the following to confirm:
Knowning that for a right angled triangle,
sin A = opposite / hypotenuse = 4/5
tan A = opposite / adjacent = 4/3
From this we can surmise that
Opposite = 4
hypotenuse = 5
adjacent = 3
Assemble the triangle to see if this works (see attached). We can futher verify that 3-4-5 works using the Pythagorean theorem.
Now that we have determined that the triangle is a 3-4-5 right angled triangle,
cos A = adjacent / hypotenuse = 3/5
Answer:
251.2 units³ ; 80π units³
Step-by-step explanation:
Volume of a Cylinder is:
'r' is the radius.
'h' is he height.
The cylinder has a base radius of 4 units and the height 5 units.
<h3>Using 3.14 for Pi:</h3>The approximate volume is 251.2 units³.
<h3>In terms of pi:</h3>The exact volume is 80π units³.