The arc measurement of the sector is 216°.
Therefore the area of the sector is 216/360 = 0.6 of the area of the entire circle.
Let r = the radius of the circle.
Then the area of the circle is πr².
Therefore the area of the sector is
0.6*πr²
Because the area of the sector is 15π cm², therefore
0.6πr² = 15π
r² = 15/0.6 = 25
r = 5 cm
Answer: 5 cm
Answer:
-2x + 1
Step-by-step explanation:
3 + 7x - (2 + 9x)
Distribute the negative:
3 + 7x - 2 - 9x
Combine like terms:
-2x + 1
For this case we must simplify the following expression:
By law of multiplication signs we have to:
We add similar terms:
We simplify:
Answer:
The correct answer is B hope this helps :)
Answer:
3024u²
Step-by-step explanation:
To find the area of a 2D figure with 4 sides, you have to multiply the length by width. Let's work it out!
Assume that this lovely interpertation of a rectangle has connected sides,
108
I---------I
I----------I 28
The equation for this is 108x28, which is 3024!
Dont forget to add the u² at the end!