What is the formula for finding area of a rectangle?
A=bh
What is Pi?
3.14159....
Define the radius of a circle.
The measurement from the middle of the circle to the edge.
What is formula for finding area of a triangle?
A=1/2bh
What is the first step in finding the area of a composite figure?
Separating the figure into easily recognizable shapes.
Define the circumference of the circle.
The entire outside edge of the circle (the circles perimeter).
How do you find the area of the shaded region on a composite figure?
Find the area of each shape and then subtract the area not shaded from the total
What is the formula for the area of a trapezoid?
A=1/2(b1+b2)h
A flowerpot has a circular base with a diameter of 27 centimeters. Find the circumference of the base of the flowerpot. Round to the nearest tenth.
84.8cm
What is the difference between the diameter and the radius of a circle?
The diameter goes across the entire circle and the radius goes halfway.
A figure is composed of a triangle and a semi-circle. The base of the triangle is 8 and the height is 4. The radius of the semi-circle is 6. Find the area.
What is 68.52?
A lawn sprinkler sprays water 5 feet in every direction as it rotates. What is the area of the sprinkled lawn?
78.5 feet2
Pi (the diameter will always wrap around a circle 3.14159.... times)
A figure is composed of a rectangle, a triangle, and a semi-circle. The base of the rectangle is 3 and the height is 3. The triangle has a base of 3 and a height of 6. The semi circle has a radius of 4. Find the area.
What is 43.12?
The distance around the wheel of a truck is 9.42 feet. What is the diameter of the wheel?
3 feet