2 years ago

How do you find the measure of this angle ?

1 answer:

3 0

The lines through the sides in the circle indicate that the three sides are all of the same length, and therefore share the same angle.

A shape inside a circle will always have its angles equal 360, so you can find the individual angle with the following equation:

$120 + 3x = 360$

Subtract 120 from both sides.

$3x = 240$

Divide both sides by 3.

$x = 80$

mBC's angle is 80 degrees.

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Nicholas has a collection of books. He has 115 fantasy and science fiction books. These books are 46% of his collection. How man

Anit [1.1K]

Given that Nicholas has a 115 fantasy and science fiction books which is 46% of his collection.

Now we have to find what is total number of books in his collection.

Let number of books in Nicholas collection = x

then number of fantasy and science fiction books = 46% of x = 0.46x

We already know that he has 115 fantasy and science fiction books, so both values will be equal and give equation:

0.46x=115

now we can solve this equation to find the answer.

$x=\frac{115}{0.46}$