Types of Triangles
A triangle with 3 equal sides.
Equilateral
The formula for the area of a triangle.
1/2 bh or (b x h) / 2
b= 0.4m h= 0.9m A=?
A= 0.18 m2
What is a triangle that has angles that are all less than 90o and 2 sides that are the same?
An acute isosceles triangle
The mode for this set of data.
83,27,45,65,73,83,92,79,53,45,65,83
83
True or False.
A right triangle has 2 right angles.
False
if b=3 and h=4, A=?
A=6
h= 1.5cm b= 4cm A=?
A= 3cm2
I have a triangle that has sides that are 5cm, 3cm, and 5cm. The angles are 65, 45, and 70. What is the triangle?
acute isosceles
if a is 3 and b is 12 then what is a2 + b2 = c
153
A triangle with 3 angles less than 90 degrees.
Acute
if b=8 and h=10, A=?
A=40
b= 4.8m h= 3.7m A=?
A= 8.88m2
This triangle has angles that are 90, 65, and 25. The sides are 3cm, 4cm, and 5cm.
right scalene
What does perpendicular mean?
2 lines that intersect.
A right, isosceles triangle has 1 right angle and 2 equal sides.
True or False
True
if b=3 and h=7, A=?
A=10.5
b= 1.4 cm h= 2.3 cm A=?
A= 1.61 cm2
Triangle has 2 sides that are 5cm and one side that is 3cm. It has two angles that measure 40 and one that measures 100.
obtuse isosceles triangle
3 to power of 0 =
1
Triangle ABC has sides that are 11cm,11cm, and 12cm. What kind of triangle is ABC?
Isosceles
if A=21 and b=6, h=?
h=7
A= 27 cm2 b= 6cm h= ?
h= 9 cm
Sides - 3cm,6cm, 7cm
Angles- 45, 33,103
obtuse scalene
12, 13, 15, 3, 20, 5, 9
Find the mean
11