Question

Please help me in these simple equations

Answer 1

Answer:

1. $225cm^2$

2. $544mm^2$

3. $405mm^2$

4. $67.50cm^2$

5. $495mm^2$

6. $480cm^2$

Step-by-step explanation:

1. Square

$A=s^2$

s = 15 cm

$A=(15cm)^2\\A=225cm^2$

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2. Rectangle

$A=l*w\\A=(32mm)(17mm)\\A=544mm^2$

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3. Rectangle

$A=l*w\\A=(45mm)(9mm)\\A=405mm^2$

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4. Triangle

$A=\frac{hb}{2}\\ A=\frac{(9cm)(15cm)}{2}\\ A=\frac{135cm^2}{2}\\ A=67.50cm^2$

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5. Triangle

$A=\frac{hb}{2}\\ A=\frac{(30mm)(33mm)}{2}\\ A=\frac{990mm^2}{2}\\ A=495mm^2$

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6. Rectangle

$A=l*w\\A=(34cm)(20cm)\\A=480cm^2$