The area of the circle is 113.04 cm²
<u>Step-by-step explanation:</u>
The given information are,
- The diameter of the circle = 12 cm
- The diameter must be converted into radius.
Radius = diameter / 2
Radius = 12/2 = 6 cm
Now, the formula for area of the circle is given by πr²
where,
- r is the radius of the circle.
- π has the default value 3.14
<u>To calculate the area of circle :</u>
Substitute r=6 and π=3.14,
Area of the circle = (3.14) × (6²)
⇒ 3.14 × 36
⇒ 113.04 cm²
The area of the circle is 113.04 cm²
Answer:
THE answer is D Irrational number
Step-by-step explanation:
Pi is an irrational number because it cannot be expressed as a ratio (fraction) of two integers: it has no exact decimal equivalent, although 3.1415926 is good enough for many applications. The square root of 2 is another irrational number that cannot be written as a fraction.
Answer:
Step-by-step explanation:
The general rule we are going to use to multiply this out is the distributive property. Which is:
a(b+c) = ab + ac
<u>Note:</u> x * x = x^2
Now multiplying, we get:
This is the multiplied out form, answer.
Answer:
17.2°
Explanations
To find angle A, use the cosine rule.
a^2 = b^2 + c^2 - 2 × a × c cos A
4^2 = 7^2 + 10^2 - 2 × 7 × 10 cos A
16 = 49+ 100 - 140 × cosA
16 = 149 - 140cosA
16- 149 = - 140cosA
-133 = - 140cosA
cosA = 133/140
cosA = 0.95
A = 17.2°
10 x 10 = 100
(That is a very nice drawing. Keep it up, and you could become an artist! I used to draw like that too lol. Brainlest pls!)