pythagorean theorem. and I need to calculate the missing sides. If possible I would like an explanation but an answer is also fine.

Step-by-step explanation:

To calculate the missing sides square the  side length of the legs of the  triangles(  the lines that form a 90 degree angle) then add them together, then take the sqr root of that to find the hypotunse( the slanted side). In simplier terms, here how it look.

where a and b are the legs, and c is the hypotunese.   For example, Ill do 3. The bases are 22, and 11 so plug them in the equations.

11^2+22^2=c^2

121+484=c^2

605=c^2

c=about 24.6

so, converting firstly the mixed fractions to improper fractions and then "adding".

ιт ωαѕ 5¢м вє¢αυѕє 1/4 σf 20 ιѕ 5

αи∂ 5*4=20

нσρє ι ¢συℓ∂ нєℓρ уσυ