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PLEASE HELP!! this is due soon and i rlly need help

explanation = brainliest

The radius of a circle is 3 kilometers. What is the area of a sector bounded by a 90° arc?
give the exact answer in simplest form.

PLEASE HELP this is due soon and i rlly need help explanation brainliest The radius of a circle is 3 kilometers What is the area of a sector bounded by a 90 arc class=

Respuesta :

devishri1977

Answer:

Step-by-step explanation:

r =  3 km

Ф = 90°

Area of a sector = [tex]\frac{theta}{360}*\pi *r^{2}[/tex]

                           [tex]= \frac{90}{360}* 3.14 * 3 * 3\\\\= \frac{3.14*3*3}{4}\\[/tex]

                           = 7.065 sq.km

msm555

Answer:

Solution given:

r=3km

area of sector bounded by a 90° arc=90°/360°*πr²

=¼*π*3²

=9/4 π or 7.068km²

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