25a² - 16b²
25*-2² - 16*3²
25*4 - 16*9
100 - 144
= -44
Answer:
3=c 4=a
Step-by-step explanation:
27.2 mm²
Area of the triangle = ½*base*height
base = 8 mm
height = 6.8 mm
Area = ½*8*6.8
= 4*6.8
= 27.2 mm²
Answer: B.
I hope this helps!
