In the accompanying diagram of rectangle ABCD, AD = 12 and AB = 5. What is the length of diagonal AC ?
А
12
D
5
B
C
1 point
x=13

hyp=✓5*5+12*12

hyp=✓25+144

hyp=✓169

hyp=13cm

Hence, the length of diagonal bd=ac=13cm

step-by-step explanation: h: (- 3, 6)

m: (1, - 2)

o: (7, 6)

r: (- 9, - 2)

midpoint of hm: (- 1, 2)

midpoint of or: (- 1, 2)

therefore, b is the midpoint of both diagonals bisect each other !

to prove the diagonals are perpendicular, show that the product of the slopes = - 1