Answer:
30 ft², 40 ft², 70 ft²
4th option
Step-by-step explanation:
Applying Pythagoras' identity to the figure
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, then
If the area on the 2sides is 30 ft² and 40 ft² then the hypotenuse is
30 ft² + 40 ft² = 70 ft²
