Question

bntu ya plse mohon bnget​

Answer 1

1. K = 2 × (8 cm + 7 cm)

= 2 × 15 cm

= 30 cm

2. K = 4 × 50 cm

= 200 cm

3. (75 cm - 33 cm) ÷ 2

= 42 cm ÷ 2

= 21 cm

4. K = 4 × 23 cm

= 92 cm

5. (120 cm - (25 cm × 2)) ÷ 2

= (120 cm - 50 cm) ÷ 2

= 70 cm ÷ 2

= 35 cm

6. 15² = 15 × 15 = 225

7. 30² ÷ 5² + 18²

= 900 ÷ 25 + 324

= 36 + 324 = 360

8. √256 = 16

9. √144 + √(25 × 4)

= √144 + √100

= 12 + 10 = 22

10. L = 12 cm × 12 cm

L = 144 cm²