Is the sum of √16 and 1.5 rational or irrational?" Justify and explain your answer.
1 answer:
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Answer:
161.1 m² (1 dp)
Step-by-step explanation:
Area of a triangle = 1/2 x base x height
⇒ area = 1/2 x 12 x (20 - 12) = 48 m²
Area of a quarter circle =
⇒ area = 1/4 x x 12² = 113.1 m² (1 dp)
Total area = 48 + 113.1 = 161.1 m² (1 dp)