Question

Find the area and the perimeter of the rectangle whose length is 15 cm and the length of one diagonal is
17 cm.
Answer as fast as possible.
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Answer 1

Step-by-step explanation:

L= 15 [L = length, B=breadth, H = diagonal ]

H=17

L^2 + B^2= H^2

15^2 + B^2 = 17^2

B^2 = 289-225 = 64

B = 8

area of rectangle = L×B = 15×8 = 120

perimeter of rectangle = 2 (L+B) = 2 (15+8)

= 2 (23) = 46

Answer 2

Answer:

255 cm²

Step-by-step explanation:

area of rectangle is = l*b sq.units

=15 * 17 sq.units

= 255 cm²