Answer:
A = 1/2(b×h)
Step-by-step explanation:
Area = 1/2(base×height)
Answer:
the answer is A.
Step-by-step explanation:
Answer:
Area decreases by 16%
Step-by-step explanation:
Use formula for the area of the triangle

<u>Initial triangle:</u>
The base is 18 cm
The height is 5 cm
The area is

<u>New triangle:</u>
The base is 
The height is 
The area is

Area decreases by
