Inequalities
Draw a graph of the following:
x > 3
Open circle at 3, arrow going right.
What is the difference between an acute and obtuse angle?
Answers may vary.
What do the angles in a triangle have to add up to?
180 degrees
What does the circumference mean?
The perimeter of the circle
What is a real world example of Surface Area?
Painting, wrapping a gift, etc
What are two solutions to 2x + 6 < 2
Anything less than -2.
Draw and label (with numbers) a picture of vertical angles.
Answers Vary.
If the scale is 1in=4feet and the measurement is 3.5 inches, how many feet is it?
14 feet
What is the radius if the diameter of the circle is 14 inches?
7 inches
What do you need to do find the area of a semi-circle?
A = pi * r2 / 2
You have $30 to take yourself and a friend out to the movies. The tickets cost $8.00 each.
Write an inequality that could be used to find the amount of money you can spend on snacks?
$16+x≤$30
If the two angles are complementary and one angle is 3x and the other angle is 24*. What is the value of x?
x = 22
Is it possible to make a triangle with side lengths 2in, 3in, and 5in? Why?
No. 2+3 is not greater than 5.
What is the diameter if the circumference is 65.97 inches?
21 inches
How is the formula for volume of a rectangular prism and triangular prism different?
Triangular Prisms you need to divide by 2.
When do you have to flip the sign for an inequality?
When the coefficient is negative
EX: -3x > 9
What is the difference between complementary and supplementary angles?
Comp: Add up to 90
Supp: Add up to 180
How many triangles can you make with the angle measures 30*, 60*, and 90*?
Infinitely many
What is the area of a circle with a radius of 3 cm?
28.26 cm2
What is the definition of volume?
The amount of space in a certain 3D object
Solve the inequality:
-2x - 6 > 16
x < -11
If three angles are supplementary, one is 40*, one is 54*, and one is x*. What is x?
x = 86*
What is a scale drawing?
A smaller version of a real life object, reduced drawing that is proportional to the original object, etc.
The circumference is 20xpi yards. What is the area?
314 yards2
What is the surface area of number 18 in the packet?
164 in2