Find the area of this triangle. round to the nearest tenth

2nd leg^2 = 17^2 + 15^2

2nd leg^2 = 64

2nd leg = 8

a = 17  b = 15  c = 8

We use heron's formula to find area when we know 3 sides.

We first must calculate the semi-perimeter:

semi-perimeter = 17 + 15 + 8 / 2  = 20

area = square root  [s * (s -a) * ( s-b) * (s-c)]

area = sq root [20 * 3 * 5 * 12]

area = sq root [3,600]

area = 60 square meters

Step-by-step explanation:

73.1

Step-by-step explanation:

2

step-by-2step explanation:

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.