Answer: 86.5 in²
Step-by-step explanation: Circumference is2·pi·r= 32.97 in.
Radius r = 32.97 in/ 2pi = 5.247 in. Area is pi·r²
Answer:
18q
Step-by-step explanation:
18*q=18q
Hope that helped :)
Answer:
15
Step-by-step explanation:
Answer:
<em>a=24, c=8</em>
Step-by-step explanation:
<u>Equations and Geometry
</u>
A parallelogram is known because its opposite sides are parallel and have the same lenght. So, knowing one of them, we can say the other has the same value. Angles opposed by the vertex are also equal. If we extended the lines AC and AD near the vertex A, we can see both marked angles are equal, i.e.
4a-33=2a+15
4a-2a=33+15
a=24
The parallel sides given are equal, so
3c-5=2c+3
3c-2c=5+3
c=8
The solution is
Step-by-step explanation:
3x²+4=31
3x²=31-4
3x²=27
x²=27÷3
x²=9
x=±3