Right-angled 4951

Calculate the volume and surface area of ​​the body that is created by cutting out a three-sided prism of the same height from a cuboid with dimensions of 10 cm, 15 cm, and 20 cm, whose base is a right-angled triangle with dimensions of 3 cm, 4 cm, and 5 cm.

Correct answer:

V =  2880 cm3
S =  1248 cm2

Step-by-step explanation:

a=10 cm b=15 cm c=20 cm a1=3 cm a2=4 cm a3=5 cm S1=a1 a2/2=3 4/2=6 cm2 S2=a b=10 15=150 cm2 S3=S2S1=1506=144 cm2 V=S3 c=144 20=2880 cm3
o=a+b+(aa1)+a3+(ba2)=10+15+(103)+5+(154)=48 cm S=2 S3+o c=2 144+48 20=1248 cm2

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