Triangles (angles)
One of a triangle's angles in 90 degrees. What COULD one of the other angle measures be?
a. 40 degrees
b. 90 degrees
c. 110 degrees
d. 140 degrees
a. 40 degrees
A triangle has sides that are 7 feet, 7 feet, and 3 feet. What types of triangle is this?
a. Equilateral
b. Isosceles
c. Scalene
b. Isosceles
What shape can be made with four lines that are not congruent to each other?
a. Kite
b. Parallelogram
c. Rhombus
d. Trapezoid
d. Trapezoid
Always, sometimes, or never:
A rhombus is a parallelogram
Always
An angle measures 17 degrees. What type of angle is this?
Acute angle
On the playground, the slide, swings, and monkey bars are all the same distance from each other. Tommy walks from the slide to the swings. He then walks from the swings to the monkey bars, and then back to the slide. What shape is formed by the path Tommy walks?
a. Equilateral triangle
b. Obtuse triangle
c. Right triangle
d. Straight line
a. Equilateral triangle
Three students, of three different heights, laid on the ground and made a triangle. What type of triangle did they make?
a. Equilateral
b. Isosceles
c. Scalene
c. Scalene
What shapes have ALL sides congruent?
squares and rhombuses
Always, sometimes, or never:
A square is always a rectangle
Always
How many degrees is a straight angle?
180 degrees
What are the angle measures of an acute triangle?
a. 60 degrees, 70 degrees, 50 degrees
b. 60 degrees, 90 degrees, 30 degrees
c. 60 degrees, 100 degrees, 20 degrees
d. 60 degrees, 110 degrees, 10 degrees
a. 60 degrees, 70 degrees, 50 degrees
a. Equilateral
b. Isosceles
c. Scalene
a. Equilateral
Which shape is a rhombus?
a. A shape with all sides congruent, two sets of parallel sides, and no right angles
b. A shape with one pair of parallel sides, two right angles, and no congruent sides
c. A shape with opposite sides congruent, two sets of parallel sides, and four right angles
d. A shape with six sides that are all the same length
a. A shape with all sides congruent, two sets of parallel sides, and no right angles
Always, sometimes, or never:
A rectangle is also a rhombus
Sometimes
What type of angle are the hands of the clock making right now?
:)
Robbie drew a triangle. The largest angle measure is 80 degrees. Which word describes this triangle?
a. Acute
b. Equilateral
c. Obtuse
d. Right
a. Acute
An isosceles triangle has one side that is 15 inches long and one side that is 5 inches long. What could be the length of the remaining side?
15 inches OR 5 inches
Squares, rectangles, and rhombuses could all be classified as quadrilaterals and as ____________.
Parallelograms
True or False
A trapezoid is a parallelogram
False
Find an obtuse angle in the classroom
:)
The angles of a triangle measure 14 degrees, 63 degrees, and 103 degrees. What word describes this triangle?
a. Acute
b. Equilateral
c. Obtuse
d. Right
c. Obtuse
Define the following:
Equilateral triangle
Isosceles triangle
Scalene triangle
An equilateral triangle has all sides and all angles congruent.
An isosceles triangle has two sides congruent.
A scalene triangle has no sides congruent.
Four quadrilaterals have two pairs of parallel sides. What are they?
Squares, rectangles, rhombuses, and parallelograms
True or False:
A trapezoid is a quadrilateral
True
An obtuse angle measuring 135 degrees is split into two smaller angles. One of the smaller angles is 90 degrees. What is the measure of the other angle?
45 degrees