Step-by-step explanation:
The area of a circle is given by :
A = πr²
r is the radius of the circle
(4) Diameter = 22 cm
Since, radius = diameter/2
r = 11 cm
Now, area of the circle,
(5) Diameter = 30 cm
Since, radius = diameter/2
r = 15 cm
Now, area of the circle,
(6) Diameter = 4cm
Since, radius = diameter/2
r = 2 cm
Now, area of the circle,
So, the area of circles 4,5 and 6 are 380.13², 706.85² and 12.56² respectively.
Answer:
BD = 26
The measure of angle ADB = 59 degrees
The measure of angle DEC = 118 degrees
Step-by-step explanation:
BD = 2 * EC = 2 * 13 = 26
The measure of angle ADB = 90 - 31 = 59 degrees
The measure of angle DEC = 180 - 2(31) = 180-62 = 118 degrees
He has been riding for and hour. he had gone 1.5 miles after 30 minutes and Vanessa started biking. after 30 MORE minutes, he had gone 3 miles while she had gone 8 miles. 8-3=5.
<span>let x be number of bicycles
and y the number of</span> tricycles<span>
So
x + y = 25 equation 1
The number of wheels is
2x + 3y = 63 equation 2
</span>We can multiply the equation 1 by two and subtract from the second one...
2x + 3y = 63
-(2x + 2y = 50)
then
y = 13 trikes and
x = 12 bikes
Answer:
Step-by-step explanation:
4h/5