Find and draw all lines of symmetry in the following figures. If there are none, write “none.”
1 point
1
Question 2
2.
For each triangle , state whether it is acute, obtuse, or right and whether it is isosceles, equilateral, or scalene.
Angles (acute, obtuse, or right): _______
Sides: (scalene, equilateral, or isosceles): _______
Angles (acute, obtuse, or right):_______
Sides: (scalene, equilateral, or isosceles): _______
Angles (acute, obtuse, or right):_______
Sides: (scalene, equilateral, or isosceles):_______
3 points
3
Question 3
3.
How many lines of symmetry does a circle have? What point do all lines of symmetry for a given circle have in common?
3 points
3
Question 4
4.
In the following figure QRST is a rectangle. Without using a protractor, determine the measure of ∠RQS. Write an equation that could be used to solve the problem.
Blank 2 is your operation symbol.
_______ _______ _______ = _______
∠RQS = _______°
3 points
3
Question 5
5.
Find the measure of D and explain how the measure of angle d can be found without using a protractor.
3 points
3
Question 6
6.
In this figure, Q, R, and S lie on a line. Find the measure of QRT and explain how the measure of the unknown angle QRT can be found without using a protractor.
3 points
3
Question 7
7.
In this figure, Q, R, and S lie on a line. Find the measure of ∠QRT and explain how the measure of the unknown angle ∠QRT can be found without using a protractor.
3 points
3
Question 8
8.
Mike drew some two-dimensional figures.
Sketch the figures and answer each part about the figures that Mike drew.
He drew a four-sided figure with four right angles. It is 4 cm long and 3 cm wide.
3 points
3
Question 9
9.
For question 8, what type of quadrilateral did Mike draw?
3 points
3
Question 10
10.
Mike drew some two-dimensional figures.
Sketch the figures and answer each part about the figures that Mike drew.
He drew a quadrilateral with four equal sides and no right angles.
3 points
3
Question 11
11.
For question 10, what type of quadrilateral did Mike draw?
3 points
3
Question 12
12.
Mike drew some two-dimensional figures.
Sketch the figures and answer each part about the figures that Mike drew.
He drew a triangle with one right angle and sides that measure 6 cm, 8 cm, and 10 cm.
3 points
3
Question 13
13.
For question 12, classify the type of triangle Mike drew based on side length and angle measure.
3 points
3
Question 14
14.
Points F, J, and H lie on a line. What is the measure of ∠KJH if ∠FJK measures 45 degrees?
∠KJH=_______°
Write an equation that could be used to determine the measure of ∠KJH.
Blank 3 should be your operation symbol
_______ _______ _______ = _______
3 points
3
Question 15
15.
Mike used a protractor to measure ABC as shown below and said the result was exactly 130°. Do you agree or disagree? Explain your thinking.
3 points
3
Question 16
16.
Use a protractor to find the measure of the angle.