1. I sposób:
P = a * ha
P = 5 cm * 6 cm
P = 30 cm^2
Il sposób:
P = b * hb
P = 7,5 cm * 4 cm
2. P= 1/2 * d1 * d2
P = 1/2 * 8 cm * 6 cm
P = 24 cm^2
3. a) a = 2,5 cm
b = 5,5 cm
h= 3 cm
P= 1/2 * (a + b) * h
P = 1/2 * (2,5 cm + 5,5 cm) * 3 cm
P= 1/2 * 8 cm * 3 cm
P= 12 cm^2
b) a= 5 cm
x = a + 3cm
x = 5 cm + 3 cm
x= 8 cm
h = 4 cm
P= 1/2 * (5cm + 8cm) * 4 cm
P= 1/2 * 13 cm * 4cm
P= 26 cm^2
4. a = 7 cm
x= a + 5 cm
x = 7 cm + 5 cm
x = 12 cm
P= a * x
P= 7 cm * 12 cm
P= 84 cm^2
Myślę że pomogłam. Liczę na naj :>
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1. I sposób:
P = a * ha
P = 5 cm * 6 cm
P = 30 cm^2
Il sposób:
P = b * hb
P = 7,5 cm * 4 cm
P = 30 cm^2
2. P= 1/2 * d1 * d2
P = 1/2 * 8 cm * 6 cm
P = 24 cm^2
3. a) a = 2,5 cm
b = 5,5 cm
h= 3 cm
P= 1/2 * (a + b) * h
P = 1/2 * (2,5 cm + 5,5 cm) * 3 cm
P= 1/2 * 8 cm * 3 cm
P= 12 cm^2
b) a= 5 cm
x = a + 3cm
x = 5 cm + 3 cm
x= 8 cm
h = 4 cm
P= 1/2 * (a + b) * h
P= 1/2 * (5cm + 8cm) * 4 cm
P= 1/2 * 13 cm * 4cm
P= 26 cm^2
4. a = 7 cm
x= a + 5 cm
x = 7 cm + 5 cm
x = 12 cm
P= a * x
P= 7 cm * 12 cm
P= 84 cm^2
Myślę że pomogłam. Liczę na naj :>