0
Can you find the perimeter of a sector with the radius 6cm and the centre angle of 72 and show simple calculations THANKS?
-- The circumference of the complete circle is 2 pi R = 12 pi cm.
-- The central angle of a complete circle is 360 degrees.
-- A central angle of 72 degrees is 72/360 = 0.2 of the circle.
-- The perimeter of the 72-degree sector is
(0.2 of the whole circumference) plus (the 2 radii at the edges of the sector).
-- I'm quite confident that you can handle it from this point. Don't disappoint me.
What else can I help you with?
How do you draw the radius of a circle?
A line of any length may act as the radius of a circle. The radius is the distance from the centre to the perimeter of a circle.
Is the radius the center of the circle?
No, it is the distance from the centre to any point on the perimeter in a straight line.
Perimeter of a circle?
Circumference (perimeter) of a circle = pi x diameter. Diameter of a circle is the straight line distance from one side to the other which passes through the centre of the circle and is twice the radius.
What is the formula for finding the radius of a circle when you have the perimeter?
2*pi*radius = perimeter or circumference of a circle radius = circumference/2*pi
How do you construct the triangle if its sides are not given and the measures of angles are 50 60 and 70 the radius of the circumcircle is 32?
1) Draw a circle of radius 32 2) Draw a radius (meeting the perimeter at A) 3) Based on the radius, construct an angle at the centre of the circle of 100° - draw a second radius (meeting the perimeter at B) 4) Based on the second radius, construct an angle at the centre of the circle of 120° - draw a third radius (meeting the perimeter at C) Note : the angle between the third and first radii measures 140°. 5) Draw chords joining A to B, B to C, and C to A. The triangle ABC has angles measuring 50°, 60° and 70°. NOTE : The process is based on the Theorem that the angle subtended by an arc at the centre of a circle is twice the angle subtended at any point on the circumference.
What are some formulas that pi would be useful for?
calculating the circumference of a circle, it's area, it's perimeter, its diameter, radius, it's algebraic calculations of missing circle parts.
Is the radius the measurement of the perimeter of a circle?
No.
Can you give me a sentence with the word radius?
The radius is found inside of the perimeter.
What is the equation of the perimeter of a circle?
perimeter = pi * diameter, or 2 * pi * radius
How do you find the radius of a circle if you know the perimeter?
you can divide the perimeter(circumference) by pi(3.14) and then once you get your answer you divide that by two giving you the length of the radius of the circle. ex: perimeter = 34pi 34pi/pi 34/2=diameter 16=radius
Which are the center and radius 169?
Centre is 169 and Radius is 84.5
What is the center and radius of 4?
4 is a number. It does not have a centre, not a radius.
