Question: a rectangular mat has an area of 120 sq . metres and perimeter of 46 m . the length of its diagonal is :
A)  19 m
B)  17 m
C)  15 m
D)  16 m
E)  20 m
Correct answer: b
Grade: 8 | Topic: Geometry | Difficulty: Medium | Standard: 8.G.B.7