Question

tentukan panjangnya segitiga itu?
pliss aku mohon sama penjelasannya​

Answer 1

Jawaban:

Nomor 1.

• AB² = AC² - BC²
• AB² = 17² - 8²
• AB² = 289 - 64
• AB² = 225
• AB = √225
• AB = 15 cm

.

Nomor 2.

• DF² = DE² + EF²
• DF² = 5² + 12²
• DF² = 25 + 144
• DF² = 169
• DF = √169
• DF = 13 cm

.

Nomor 3.

• KL² = KM² - LM²
• KL² = 10² - 6²
• KL² = 100 - 36
• KL² = 64
• KL = √64
• KL = 8 cm

.

Nomor 4.

• HJ² = HF² + FJ²
• HJ² = 9² + 12²
• HJ² = 81 + 144
• HJ² = 225
• HJ = √225
• HJ = 15 cm

Answer 2

1) √17² - 8²

= √(17(17) - (8(8)

= √289 - 64

= √225

= √25²

= 25 CM

2) √5² + 12²

= √(5(5) + (12(12)

= √25 + 144

= √169

= √13²

= 13 CM

3) √10² - 6²

= √(10(10) - (6(6)

= √100 - 36

= √64

= √8²

= 8 CM

4) √9² + 12²

= √(9(9) + (12(12)

= √81 + 144

= √225

= √15²

= 15 CM