2 Answers

Fanda · Answer 1 · 2021-02-15T11:20:45+0000

Answer:

$\bold{2\pi\ ft^2\approx6,28\ ft^2}$

Explanation:

360°:2 = 180° so the area of a sector bounded by a 180° arc is a half of area of a circle of the same radius.

$A=\frac12\pi R^2=\frac12\pi\cdot2^2=\frac12\pi\cdot4=2\pi\ ft^2\approx2\cdot3,14=6,28\ ft^2$

Peelman · Answer 2 · 2021-02-19T15:04:36+0000

Answer:

$\boxed{Area = 3.14 ft^2}$

Explanation:

Radius = r = 2 feet

Angle = θ = π/2 (In radians) = 1.57 radians

Area of Sector =
$(1)/(2) r^2 \theta$

Area =
(1)/(2) (4)(1.57)

Area = 2 * 1.57

Area = 3.14 ft²

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