Answer:
225.5 sq. mm
Step-by-step explanation:
triangle:5x(9+4+4+4)=15x21÷2=157.5
5x(4+4)=5x8=40
7x4=28
157.5+40+28=157.5+68=225.5
Answer:
The product of
is 81.6
Step-by-step explanation:
Given : 
To Find : Find the product
Solution:


So, 

Hence the product of
is 81.6

=

Cross multiply..
1x = 12.8
Divide 1 from both sides

=

x = 12.8
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Let's check our answer now..

=

Cross multiply
12.8 = 12.8
Your answer is 12.8 :)
Area = πr^2
Circumference = 2πr
Blue:
Area = 5^2 = 25π
Circumference = 2 * 5 * π = 10π
Pink:
Area = 6^2 = 36π
Circumference = 2 *6*π = 12π
White:
r = 3
Area = 3^2 = 9π
Circumference = 2 *3 = 6π
Red:
Area = 7^2 = 49π
Circumference = 2 *7 = 14π