Answer:
888
Step-by-step explanation:
Im pretty sure this is the answer, if helpful please mark me as brainiest :>
Answer:
6. 8 mi³
7. 72 cm³
Step-by-step explanation:
6. Volume of triangular pyramid = ⅓*A*H
Where,
A = area of triangular base = ½*b*h = ½*3*4 = 6 mi
H = height of pyramid 4 mi
Volume = ⅓*6*4 = 8 mi³
7. Volume of triangular prism = ½*bhl
Where,
b = 3 cm
h = 6 cm
l = 8 cm
Volume = ½*3*6*8 = 72 cm³
EFHG => EF = AC = 3cm and EG = AB = 10cm, so the area = 3*10 = 30 cm^2
ACFE => AC = 3cm and FC = 2cm, so the area = 3*2 = 6 cm^2
180= x+24+6x+18+2x+30
180= 9x+72
108=9x
X=12