the area of a sector of a circle of radius 7cm and central angle 45
Answers
Answered by
3
Area of a sector=πr² × Ф/360. (Formula)
π = 22/7
r= 7 cm
Ф = 45
Then area,
(by putting the values in that formula)
= 22/7 × 7 × 7 × 45/360
= 19.25 cm² (ans)
Answered by
0
Answer:
19.25 cm²
Step-by-step explanation:
Area of full circle is π*(radius)² ≈ (22/7)*7*7 = 154 cm²
Therefore area of sector with central angle 45° is (45°/360°)*154 = 19.25 cm²
Similar questions