Datrys 1/2*6*4.5+1/2*10*12.5

$$\frac{ 1 }{ 2 } \times 6 \times 4.5+ \frac{ 1 }{ 2 } \times 10 \times 12.5$$

Enrhifo

$$76$$

Camau Ateb

Lluosi \frac{1}{2} a 6 i gael \frac{6}{2}.

$$\frac{6}{2}\times 4.5+\frac{1}{2}\times 10\times 12.5$$

Rhannu 6 â 2 i gael 3.

$$3\times 4.5+\frac{1}{2}\times 10\times 12.5$$

Lluosi 3 a 4.5 i gael 13.5.

$$13.5+\frac{1}{2}\times 10\times 12.5$$

Lluosi \frac{1}{2} a 10 i gael \frac{10}{2}.

$$13.5+\frac{10}{2}\times 12.5$$

Rhannu 10 â 2 i gael 5.

$$13.5+5\times 12.5$$

Lluosi 5 a 12.5 i gael 62.5.

$$13.5+62.5$$

Adio 13.5 a 62.5 i gael 76.

$$76$$

Ffactor

$$19\times 2^{2}$$