Answer:
[tex](21in,30in)=>210in^2[/tex]
[tex](15in,18in)=>90in^2[/tex]
[tex](15in,30in)=>150in^2[/tex]
Step-by-step explanation:
Required
Match the expressions on the left with the right
(a) 21 in by 15 in
Calculate area
[tex]Area = 21in * 15in[/tex]
[tex]Area = 315in^2[/tex]
Multiply by [tex]1/3[/tex]
[tex]1-third = 315in^2 * \frac{1}{3}[/tex]
[tex]1-third = 105in^2[/tex]
Hence:
[tex](21in,15in)=>105in^2[/tex]
(b) 21 in by 30 in
Calculate area
[tex]Area = 21in * 30in[/tex]
[tex]Area = 630in^2[/tex]
Multiply by [tex]1/3[/tex]
[tex]1-third = 630in^2 * \frac{1}{3}[/tex]
[tex]1-third = 210in^2[/tex]
Hence:
[tex](21in,30in)=>210in^2[/tex]
(c) 15 in by 18 in
Calculate area
[tex]Area = 15in * 18in[/tex]
[tex]Area = 270in^2[/tex]
Multiply by [tex]1/3[/tex]
[tex]1-third = 270in^2 * \frac{1}{3}[/tex]
[tex]1-third = 90in^2[/tex]
Hence:
[tex](15in,18in)=>90in^2[/tex]
(d) 15 in by 30 in
Calculate area
[tex]Area = 15in * 30in[/tex]
[tex]Area = 450in^2[/tex]
Multiply by [tex]1/3[/tex]
[tex]1-third = 450in^2 * \frac{1}{3}[/tex]
[tex]1-third = 150in^2[/tex]
Hence:
[tex](15in,30in)=>150in^2[/tex]
