Use the points in the diagram to name the figure.1.
(1 point)
2.
(1 point)
3.
(1 point)
4.
Name four line segments that have point B as an endpoint.
(1 point)
5.
Classify the angle as acute, obtuse, or straight.
Which is an obtuse angle? (1 point)
6.
The measure of angle B is 65.8°. Find the measure of the complement and supplement of angle B.(1 point)
7.
Which angle or angles are complementary to AOF ?
(1 point)
8.
Which drawing shows the construction of a perpendicular bisector? (1 point)
Classify the triangle by its sides.
9.
Triangle LPQ has side lengths of 12, 12, and 16. (1 point)
10.
(1 point)
11.
Classify the quadrilateral.
(1 point)
12.
The two rectangular rooms shown below are congruent. The architect did not finish the diagrams. Find the missing side lengths and angle measures.
(1 point)
13.
Use the circle. Name all the diameters.
(1 point)
Use the circle.
14.
Identify the diameter(s) of circle O.(1 point)
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no.
What is 12 in ? And what is 16 in ? ? Are they the lengths of two sides of the triangle ? Are they the length of one side and the height of the triangle ? The area of any triangle is 1/2 of the product of (length of its base) x (its height).
Yes they do. We find this by applying the pythagorean theorum. Since 9^2 + 12^2 = 15^2, they form a right triangle.
It could be 12 because the sum of the 2 smaller sides of a triangle must be bigger than its largest side.
Proportions would be the best way; given the sides of the triangle, use ratios to find the corresponding side on the congruent triangle. For example: if three sides are given, 3, 4, and 5, and you had to solve a triangle with lengths 9, 12, and x, this is how you would do it. Given the triangles are congruent, 4/5 = 12/x 4x = 60 x = 15