Area of Circles
What is the formula for finding the area of a circle?
A=πr^2
Which triangle has all three sides equal in length?
Equilateral
What is the formula for finding circumference of a circle?
C= 2πr
What is the formula for finding the perimeter of a 4 sided figure?
P= a + b + c + d
What is the formula for finding area of a regular 4 sided figure?
A= l x w
Find the area of a circle with radius 17 cm.
289π
What type of triangle has all angles measuring 60°?
Equilateral
A circle has a radius of 4, what is the circumference?
25.13
A square has the following measurements: side a, side c= 7 side b, side d= 4 What is the perimeter?
22
The length of a rectangle is 26 meters and the width is 1 meters. Find the area
26
Find the area of a circle with radius 9 cm.
81π
A triangle has two angles measuring 55° and one angle measuring 70°. What type of triangle is this?
Isosceles
A circle has a radius of 15, what is the circumference?
94.25
The length of a rectangle is 3 meters and the width is 16 meters. What is the perimeter of the rectangle?
38
The length of a rectangle is 98 meters and the width is 63 meters. Find the area.
6,174
Find the area of the shaded region, if the diameter of the circle is 10 and the height of the rectangle is 6. Use 3.14 for pi and round to the nearest hundredth.
20.75
A triangle has angle measurements of 33°, 70°, and 77°. What type of triangle is this?
Acute
If this circle has a diameter of 12 inches, what is its circumference?
12π
If the two legs of a right triangle are 3cm and 4 cm respectively, then the perimeter is
12cm
What is the formula for finding the area of a parallelogram?
A= bh
Find the area of the shaded region, if the diameter of the circle is 12 and the height of the rectangle is 11. Use 3.14 for pi and round to the nearest hundredth.
75.48
What type of triangle is Δ PQR, where ∠Q = 90°?
Right
If a circle has an area of 81π, what is the circumference of the circle?
81π
Calculate the perimeter of a triangle, if each side of a triangle is 3 cm
9cm
If the base of a parallelogram is 6.7, and the height is 2.3, what is the area?
15.4