Answer:
No, this is not a right triangle.
I don't see the answers, but it would most likely be 59 + x.
P(no girls in five births) = p(five boys) = (1/2)^5 = 1/32 = 0.0313
7 cm: 35000 cm (7*5000)
2.8 cm: 14000 cm (2.8*5000)
2 cm: 10000 cm (2*5000)
The total square footage 2,070 Sq Ft