Answer:
none of the above
Step-by-step explanation:
The area of a triangle is half the product of base and height:
A = (1/2)bh
For a right triangle, the base and height are the two leg lengths. So, the area is ...
A = (1/2)(4/5 cm)(2 1/4 cm)
= (1/2)(4/5)(9/4) cm^2
= (1·4·9)/(2·5·4) cm^2
= 9/10 cm^2
This area is not a listed answer choice.
