Answer:
1. [tex]225cm^2[/tex]
2. [tex]544mm^2[/tex]
3. [tex]405mm^2[/tex]
4. [tex]67.50cm^2[/tex]
5. [tex]495mm^2[/tex]
6. [tex]480cm^2[/tex]
Step-by-step explanation:
1. Square
[tex]A=s^2[/tex]
s = 15 cm
[tex]A=(15cm)^2\\A=225cm^2[/tex]
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2. Rectangle
[tex]A=l*w\\A=(32mm)(17mm)\\A=544mm^2[/tex]
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3. Rectangle
[tex]A=l*w\\A=(45mm)(9mm)\\A=405mm^2[/tex]
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4. Triangle
[tex]A=\frac{hb}{2}\\ A=\frac{(9cm)(15cm)}{2}\\ A=\frac{135cm^2}{2}\\ A=67.50cm^2[/tex]
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5. Triangle
[tex]A=\frac{hb}{2}\\ A=\frac{(30mm)(33mm)}{2}\\ A=\frac{990mm^2}{2}\\ A=495mm^2[/tex]
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6. Rectangle
[tex]A=l*w\\A=(34cm)(20cm)\\A=480cm^2[/tex]
