Jawaban:

Dari soal tersebut, dapat diketahui bahwa segitiga lancip terbentuk jika

begin mathsize 14px style c squared less than a squared plus b squared end style

lalu segitiga siku-siku terbentuk jika

begin mathsize 14px style c squared equals a squared plus b squared end style

dan segitiga tumpul terbentuk jika

begin mathsize 14px style c squared greater than a squared plus b squared end style

dengan ketentuan c merupakan sisi terpanjang segitiga dan a,b merupakan sisi lainnya.

Dengan begitu, dapat diperoleh hasil sebagai berikut

a. segitiga lancip begin mathsize 14px style open parentheses 13 squared less than 9 squared plus 11 squared close parentheses end style

b. segitiga siku-siku begin mathsize 14px style left parenthesis 17 squared equals 15 squared plus 8 squared right parenthesis end style

c. segitiga siku-siku begin mathsize 14px style open parentheses 130 squared equals 120 squared plus 50 squared close parentheses end style

d. segitiga tumpul begin mathsize 14px style left parenthesis 16 squared greater than 12 squared plus 5 squared right parenthesis end style

e. segitiga tumpul left parenthesis 24 squared greater than 20 squared plus 10 squared right parenthesis

f. segitiga tumpul begin mathsize 14px style left parenthesis 22 squared greater than 18 squared plus 12 squared right parenthesis end style

g. segitiga lancip begin mathsize 14px style left parenthesis 2 comma 223 squared less than 1 comma 73 squared plus 1 comma 41 squared right parenthesis end style

h. segitiga lancip begin mathsize 14px style left parenthesis 36 squared less than 35 squared plus 12 squared right parenthesis end style