a = 21 cm
b = 29 cm
-------------------------
Panjang alas :
= 29 cm² - 21 cm²
= 841 cm - 441 cm
= 400 cm
= √400 cm
= 20 cm
Maka,
Keliling:
K = a + b + c
K = 21 cm + 29 cm + 20 cm
K = 50 cm + 20 cm
K = 70 cm
#Cmiiw_.
Penjelasan dengan langkah-langkah:
cri panjang alas
a = √29² - 21²
a = √841 - 441
a = √400
a = 20 cm
kelilingnya
= s1 + s2 + s3
= 21 + 29 + 20
= 50 + 20
= 70 cm
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a = 21 cm
b = 29 cm
-------------------------
Panjang alas :
= 29 cm² - 21 cm²
= 841 cm - 441 cm
= 400 cm
= √400 cm
= 20 cm
Maka,
Keliling:
K = a + b + c
K = 21 cm + 29 cm + 20 cm
K = 50 cm + 20 cm
K = 70 cm
#Cmiiw_.
Penjelasan dengan langkah-langkah:
cri panjang alas
a = √29² - 21²
a = √841 - 441
a = √400
a = 20 cm
kelilingnya
= s1 + s2 + s3
= 21 + 29 + 20
= 50 + 20
= 70 cm