Geometric Solids
A triangular prism has how many faces?
5
Define equilateral triangle and obtuse triangle.
Equilateral triangle: All sides are congruent
Obtuse triangle: Triangle with one obtuse angle
The ratio of freshmen to sophomores was 15 to 21. If there were 3468 freshmen and sophomores in all, how many were sophomores?
2023
Simplify: (-13) + (+6) + (-12)
-19
A rectangular piece of metal swings around a rod. As it spins it sweeps through a space the shape of a
cylinder
Classify the triangle by its sides
scalene triangle
This rectangular prism is constructed of cubes. Its volume is how many cubes?
280
Simplify: (-6) - (-1) + (-9)
-14
What is the area of this quadrilateral?
96
What is the area, in square millimeters, of the isosceles triangle?
750
Of the 38 students in the club, 20 were boys. What was the ratio of girls to boys in the club?
9/10
Write 0.55 x 105 in scientific notation.
5.5 x 104
Find the area of the parallelogram in square centimeters. Dimensions are in centimeters.
748
Using a tape measure, Becky Jo found that the circumference of the great redwood was 900 cm. She estimated that its diameter was 300 cm. Was her estimate a little too large or a little too small? Why?
too large because pi is greater than 3
Forty-five of the 80 students in the club were girls. What was the ratio of boys to girls in the club?
7/9
Write each of these numbers in scientific notation:
(a) 11 x 10-7
(b) 11 x 107
a. 1.1 x 10-6
b. 1.1 x 108
The measure of angle ABC in parallelogram ABCD is 85°. Find the measure of angle CDA in degrees.
85
Find the circumference of each circle.
a. 22pi b. 880
3(70-(10^2-8(18-1)))
318
-2.6 - (-4.2) + (+3.5)
5.1