Answer:
area of the sector = 360π cm²
Step-by-step explanation:
To calculate the area of the sector, we will follow the steps below;
First write down the formula for calculating the area of a sector.
If angle Ф is measured in degree, then
area of sector = Ф/360 × πr²
but if angle Ф is measured in radians, then
area of sector = 1/2 × r² × Ф
In this case the angle is measured in radiance, hence we will use the second formula
From the question given, radius = 15 cm and angle Ф = 8π/5
area of sector = 1/2 × r² × Ф
=1/2 × 15² × 8π/5
=1/2 ×225 × 8π/5
=360π cm²
area of the sector = 360π cm²
When you move down you subtract and when you move to the right you subtract when your moving up or to the left you add
Answer:
a.
b.
Step-by-step explanation:
change switch x and y and then solve for y.
a.
same for b.
b.
Answer:
Δ JKL ≅ ΔPQR
Step-by-step explanation:
Hopefully this was one of the following statements. You didn't post the statements
Answer:
112
Step-by-step explanation:
8–4 + (9 x 12)
8–4 + 108
112