Question

HELP me with These questions 2

Answer 1

Answer: 4

Explanation:

A =
`(1)/(2)`r²θ

50 =
`(1)/(2)`(5)²θ

100 = (5)²θ

100 = (25)θ

4 = θ

********************************************************************************

Answer: 1570.80 cm²

Explanation:

A =
`(1)/(2)`r²θ

A =
`(1)/(2)`(100)²
`((\pi)/(10))`

A = 500π

A = 1570.80

********************************************************************************

Answer: 19.63 m²

Explanation:

A =
`(1)/(2)`r²θ

=
`(1)/(2)`(5)²
`(\frac{\pi} {2})`

=
`\frac{25\pi} {4}`

= 19.63

********************************************************************************

Answer: 15°

Explanation:

`(\pi )/(180) = \frac{\pi} {12x}`

180 = 12x

15 = x

********************************************************************************

Answer: A

Explanation:

Quadrant I: 0° - 90°

Quadrant II: 90° - 180°

Quadrant III: 180° - 270°

Quadrant IV: 270° - 360°

255° is in Quadrant III