Name______________
Block_______________ Date____________
Area of Triangles Homework
1) The formula to find the area of the any triangle is
A
bh
1
or bh
2
2
In words it means “Area equals base times height divided by 2 or half of the base
times height.”

a) Say “The area of any triangle in the world is base times height divided by 2 ”
to yourself 6 times. NO REALLY, SAY IT TO YOURSELF 6 TIMES!!!!!!
b) Now write what you said in part A 3 times below
1)_______________________________________________________________________
_______________________________________________________________
2)_______________________________________________________________________
_______________________________________________________________
3)_______________________________________________________________________
_______________________________________________________________
2) Identify the base and height in each triangle
base: _______
base: _______
3.5 in
7m
3in
height: _______
4
3
m
6
height: _______
5.26 m
10in

3) Fill in the missing parts to Jose’s work.
3.5 u
3u
Step1 A= b x h
2
Step 2 A= 10 x
2
10 u
Step 3 A=
6
2.1
Step1 A= b x h
2
Step 2 A=
x 2.1
2
Step 3 A=
2
Step 4 A= 15u 2
2
Step 4 A=
u
2
4)
Find the Area of the triangles below
b)
a)
5m
Area______
Area______
5 cm
4m
6 cm
11 cm
c)
d)
Area______
Area______
10 u
10 in
9.5 in
8.4 u
10 u
5)
2 in
Yesinia and William were at hockey camp at the Boston Garden; Home of the World Champion
Boston Bruins. During camp, they were practicing skills in the same triangular area the whole day
show in the picture. Find the area of the space they were using for practice.
60 ft
85 ft
Map: Hanoi
6) Juan and Cheyanne are really into Black Ops.
They are playing Domination and the team has
been watching different areas. Juan needs to
cover a triangular area and Cheyanne is covering
an area in the shape of a parallelogram. Find the
Juan’s Area__________
area each person is watching. SHOW YOUR WORK
BELOW
Juan’s Area__________
Cheyanne’s Area__________