The length of the diagonal of a square is 14cm. What is the area of this square?
- A49 sq cm
- B196 sq cm
- C98 sq cm
- D77 sq cm
Solution & Step-by-step Explanation
The area of a square can be directly calculated from the length of its diagonal d using the formula:
Area=
2
1
×d
2
Given that the diagonal d=14cm:
Area=
2
1
×(14)
2
Area=
2
1
×196
Area=98sq cm
Area=
2
1
×d
2
Given that the diagonal d=14cm:
Area=
2
1
×(14)
2
Area=
2
1
×196
Area=98sq cm