The base of a prism are right triangles with leg lengths of 7 inches and 5 inches. the prism height is 12 inches. what is the vo
lume of the prism?
105 cubic inches
203 cubic inches
210 cubic inches
420 cubic inches
105 cubic inches
203 cubic inches
210 cubic inches
420 cubic inches
2 answers:
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Answer:
Perimeter
P = P1+P2
P1 = 4a P2=2(a+b)
P1=4*5 P2=2(3+5)
P1=20 P2=2*8
P2=16
P = 20+16
P=36
Area
A=A1+A2
A1= A2=a*b
A1= A2=3*5
A1=25 A2=15
A=25+15
A=40