Missing side length
The question
cm
Missing side: area 50, one side 10
How it works.
10 × ? =50
× is undone by ÷
50 ÷ 10 =5 cm
check: 10 × 5 =50
- 01
Forwards, area is one side times the other: 10 × ? = 50.
- 02
The 50 is the answer to that multiplication, so undo it by dividing.
- 03
50 ÷ 10 = 5 cm. Check: 10 × 5 = 50.