What is the measurement of ABC?
1 answer:
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Answer:
To find the answer consider that this is a right triangle and we can use the tangent function in order to find the value of x
remember the acronym soh cah toa.
to use the tangent function we divide the opposite and adjacent side that is what the oa stands for in toa
setting it up looks like this
tan 72° =
solving for x gives us x= 8×tan 72°
which is about 24.62
Step-by-step explanation:
Answer:
<em>The surface area is multiplied by 4/9.</em>
Step-by-step explanation:
<u>Surface Area of a Cone</u>
Being r the radius and l the slant height of a cone, then its surface area is
Now let's think both the radius and the slant height are multiplied by the same factor k, i.e.
r'=kr
l'=kl
The new surface area is
The new surface area is the times original SA. Since k=2/3, then
The surface area is multiplied by 4/9.