Answer:
Face, beacuse it's pointing at the flat surface
Resolve to do so
5x3=15
5x9=45
3+9=12
15+45=5x12
15+45=60
5x12=60
60=60
Which property is shown I did not understand but I think with the result 60 = 60 alone, but you will understand if you can not send me a comment, so I'll try to make you understand =)
The perfect squares on either side of 21 are 16 and 25 of which the roots are:
4 and 5
This composite figure consists of a right triangle and semicircle
The area of a triangle is: 1/2(bh)
The area of a semicircle is 1/2(pi)(r²)
Plug in the values:
1/2( 12)(8)
=48
1/2(3.14)(4²)
=25.12
25.12+48=73.12
Hope this helped :)
