Answer:
16.6%
Step-by-step explanation:
40/240=0.166
0.166 x 100= 16.6
5+5x-4y
The triangle is acute
458 cm²
5 × 5 × 2 + 5 × 18 × 4 = 50 + 360 = 410
2 × 2 × 4 × 3 = 48
410 + 48 = 458