Please help... Find the volume of the irregular
figure.
2 cm
4 cm
2 cm
4 cm
? ]cm3
5 cm
7 cm
4 cm
6 cm

In the small cuboid

length=4cm

breadth=2 cm

height=7-5=2 cm

Volume=l×b×h

Or, V=4×2×2

or, V=16cm^3

Also,

In the big cuboid

length=6cm

breadth=4 cm

height=5 cm

Volume=l×b×h

Or, V=6×4×5

or, V=120cm^3

Total volume=16cm^3+120cm^3

or, Total volume=136cm^3

d) the triangle is a right triangle 60 squared +144 squared= 156 squared

step-by-step explanation:

156 squared is the hypothenuse

so 156= c

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

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