Question

Help me with this question pliz

Answer 1

Answer:

1337.6 cm squared

Step-by-step explanation:

Using formula: $A=(x/2)*r^{2}$

$A=(41.8/2)*8^{2}$

Answer 2

Answer:

a) $\boxed{Area of Sector AOB = 23.3 units^2}$

b) $\boxed{Arc Length = 5.84 units}$

Step-by-step explanation:

a) Area of Sector AOB = $\frac{1}{2} r^2 \theta$

Where r = 8, θ = 41.8 degrees

Firstly, Angle in Radians

=> 41.8 degrees = 0.73 radians

So,

Area of Sector AOB = $\frac{1}{2} (8)^2 (0.73)$

Area of Sector AOB = $\frac{1}{2} (64)(0.73)$

Area of Sector AOB = 23.3 units²

b) Finding the length of minor arc AB

So,

Arc Length = Radius × $\theta$

Where Radius = 8,  $\theta$ = 0.73 radians

Arc Length AB = 8 * 0.73

Arc Length = 5.84 units