Answer:
The first option (5.7km)
Step-by-step explanation:
Since we have a right angle triangle and we know two of its sides we can easily find out the thirds side (the value of d) by using the Pathagoras Theorem. In our case 7 and d are our legs and the hypotenuse is equal to 9, so...
(Based on the Pathagoras Theorem)



d ≈ 5.7km
There for aproximate distance across the lake is equal to 5.7km
Answer:
then 7,10,13 and so one so forth
Step-by-step explanation:
you are subtracting three as you go on.
Answer:
V = 10 1/2 ft³
Step-by-step explanation:
V = length • width • height
V = 2 • 3 1/2 • 1 1/2
V = 10 1/2 ft³