Answer:
Your speed is 135 miles per hour.
Step-by-step explanation:
Mark me brainliest if I helped:D
h = 12.03
Substitute 22÷7 for pi.
h = V ÷ πr²
h = 340 ÷ (22÷7) × 3²
≈ 12.03
∠DEF=90-58.2=31.8°