3 years ago

the radius of a circle is 3 inches. what is the area of the sector bounded by a 90° arc? answer in simplest form

Mathematics

2 answers:

Kisachek [45]3 years ago

5 0

1/4 x Pi x 3 ^2

Quarter x Pi x 3 squared

amm18123 years ago

4 0

If the radius of the circle is 3 inches, then the area would be found by using the formula $\pi r^2$ . You plug it in, and the formula would get us that the area is $9 \pi$ square inches. Since $\frac{360}{90}$ would equal 4, you would do $\frac{9}{4}$ , which would equal $2 \frac{2}{5}$

SORRY IF MY TEX FAILS

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Find m. Please guys I really need your help :(

vredina [299]

Answer:

$m=\sqrt{2}$ inches

Step-by-step explanation:

From the diagram, it is given that the triangle is a right angle isosceles triangle (angles are 45°, 45° and 90°). This means that the two shorter sides of the triangle are equal in length and that the side $m$ can be found by using the Pythagorean theorem $a^{2}+b^{2}=c^{2}$ .