Formulas
Triangles
Circles
Angle Relationships
Random
100

What is the formula for the area of a triangle?

1/2 base x height

100

Solve for x.



x=13

100

What does the (h, k) and r stand for in the circle equation?

(h,k) is the center

r is the radius

100

Describe or draw a pair of vertical angles and explain their relationship. 

Two lines intersecting, opposite angles. They are congruent. 

100

What does SOHCAHTOA stand for?

Sine, Opposite, Hypotenuse

Cosine, Adjacent, Hypotenuse 

Tangent, Opposite, Adjacent

200

What is the formula for the area of a circle?

3.14 x r2

200

Solve for y and round to the nearest tenth. 


y=8.9

200

The area of the square is 196. What is the circumference of the circle rounded to the nearest tenth?


C=44.0

200

What is it called when two angles are on a line and together, they add up to 180 degrees?

Linear Pair

OR

Supplementary

200

Name these two rays


Ray HG

Ray AB

300

What is the formula for graphing a circle?

(x-h)+ (y-k)2=r2

300

Solve for h using Trigonometry. Round to the nearest tenth.


h=95.1

300

What is the difference between a tangent and a secant of a circle?

A tangent hits the outer edge and the secant goes through the circle. 

300

What is the name of line l?


Transversal

300

What are the six ways a triangle can be classified (by its sides and angles?)

Scalene, Equilateral, Isosceles

Obtuse, Acute, Equiangular

400
What is the formula for finding the endpoint?

M = (x2 + y2)

            2


400

What is the length of TI (in radical form)?

TI = 7 radical 3

400

What is the length of arc PQ? Round to the nearest tenth. 


arc PQ = 9.4

400

What is the m<2 and the m<4?


m<2 = 154

m<4= 26

400

Which are the two that cannot make a pair of triangle congruent?

SSS, AAA, SAS, ASA, SSA, AAS

AAA, and SSA

500

What is the formula for Arc Length?

  x        x circumference

360

500

What are the lengths of the legs



5 radicalĀ 2

500

What is the length of the arc PQ (rounded to the nearest tenth)?



28.3

500

Solve for y and x. 


y = 40 degrees

x=67

500

Giant Eagle recently changed the size of their soup can, but kept the price the same. The original can had a diameter of 10 cm, and a height of 9 cm. The smaller can has a radius of 3.5 cm and a height of 7 cm. How much more soup does the first can hold?

About 437 cm squared more