Question

ma ajutați va rog mult​

Answer 1

Răspuns:

A= (B+b)*h/2

A=1/2*(10,5+13,1)*13=1/2*(23,6)*13

=(306,8)/2=153,4

Explicație pas cu pas:

Answer 2

Răspuns:

$\bf\red{\boxed{A_{trapez}=\frac{(B+b)\times h}{2}}}\\\\A=\frac{(10,5+13,1)\times13}{2}=\frac{23,6\times13}{2}=\frac{306,8}{2}=\bf\blue{153,4\:km^2}$