Answer:
27π cm²
Step-by-step explanation:
step 1
Find the area of the complete circle
The area of the circle is equal to
A=πr²
we have
r=9 cm
substitute
A=π(9)²=81π cm²
step 2
Remember that the area of complete circle subtends a central angle of 360°
so
using proportion
Find the area of a sector formed by a central angle that measures 120°
81π/360°=x/120°
x=120°*81π/360°
x=27π cm²
Answer:
If it has a diameter of 10, divide it by 2 to get Radius (5) because Area = πr²
Then you do r * π *r which would be 78.5. so C is your answer.
Step-by-step explanation:
Answer:
the answer is d
Step-by-step explanation:
the shape of it as well
458
the answer is the last one
Answer:
27 units
Step-by-step explanation:
You can do this 2 ways:
Volume is l x w x h so 3 x 3 x 3 = 27
You can also count each cube that makes up the whole cube. The top layer has 9 cubes. The middle layer has 9 cubes. The bottom layer has 9 cubes. 9 + 9 + 9 = 27
