The area of the circle is calculated through the equation,
A = πr²
where A is the area and r is the radius. An alternate equation can be used,
A = πD²/4
where D is the diameter.
Substituting the known value to the equation,
A = π(9.1 cm)² / 4
A = 65.03 cm²
The area of the sector, As, is calculated by multiplying the area of the circle by the ratio of the angle to the whole revolution.
As = (65.03 cm²) x (170°/360°)
<em>As = 30.71 cm²</em>
The answer to this question is therefore letter B.
The 1st choice, the third and the fifth are correct
because 26/9 = 3
and 12/4 = 3
and 21/7 = 3
Answer:
1. True
2.True
3.True
4.False
5.True
Step-by-step explanation:
Answer:
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Step-by-step explanation:
lalala
(x-1)(x+6)
⇒ x²+6x-1x-6
⇒ x²+5x-6