Question

The area of a rhombus is 84 cm square. One diagonal is 14 cm find the length of other
diagonal.​

Answer 1

Explicación paso a paso:

$4 \times at = 84 \\ at = 21$

$at = \frac{x \times 7}{2} = 21 \\ x = \frac{42}{7} = 6$

$diag = 2 \times 6 = 12$