Formulas
Calculate
Calc Cont.
Circles
100
What is the formula for area of a triangle?
A = 1/2bh or A = bh/2
100
Find the area of the rectangle to the nearest 2 decimal points.
36.54 ft2
100
The area of parallelogram ABCD is 176 square units. Find the base x if the height is 11 units.
16 units
100
What is radius?
Radius is half the diameter.
The distance from the middle point of a circle
200
What is the Area formula for a rectangle?
A = b*h
200
What is the area of this triangle to the nearest 1 decimal place?
A = 10.3 ft2
200
You have two similar triangles. If one triangle has a base length of 12 and an area of 80 units squared and the other similar triangle has a base length of 3, what is the area of the second triangle?
5 square units
200
What is diameter?
The distance across the whole circle.
300
Area of a Parallelogram
A = b*h
300
Find the area of the parallelogram with a base of 13.5m and a height of 12.5m
168.75m2
300
What is the equation for a shaded part of a circle?
A = x/360 * pi * r2
300
What is circumference?
The distance around the outside edge of a circle.
The perimeter of a circle
400
What is the area formula of a kite?
A = 1/2 * d1 * d2
400
What is the area if a triangle if the base is 3.5 cm and the height is 7 cm?
A = 12.25 cm2
400
Find the diameter of a circle with area of 78.5 sq units.
10
400
A 14 inch (diameter) pizza has 8 slices. Each slice makes a central angle of 45 degrees. What is the area of each slice (round to one decimal point)?
19.2 in2
500
What equation do you use to find the area of a regular octagon?
A = 1/2 * a * P
500
Calculate the area for the kite above.
10m2
500
Find the area of an equilateral triangle with side length of 6 cm round to one decimal point.
15.6
500
Calculate the area:
113.1 cm2
1000
How to find the area of a trapezoid?
A = 1/2(b1 +b2)h
1000
Calculate the area of the shape above.
27cm2
1000
Height is always at a _____ angle to the base?
right or 90 degree
1000
A track is made of two parallel lines and two curved boundaries that form a semicircle. If the parallel lines are 100 ft long and 70 ft apart. Find the area the track covers (round to the nearest whole number)
10849 ft2