tolong bantuannya,pkai Cara ya,please,ditunggu segera,jangan asal jawab??!!

maaf kalo salah
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26.)
√34^2 - 16^2 =
√1.156 - 256 =
√900 =
30 (B)

27.)
√26^2 -(6 + 4)^2 =
√676 - 10^2 =
√676 - 100 =
√576 = 24cm