#### Question

In the given figure, radius of circle is 3.4 cm and perimeter of sector P-ABC is 12.8 cm . Find A(P-ABC).

#### Solution

Radius of the circle, r = 3.4 cm

Perimeter of sector P-ABC = 12.8 cm

Let l be the length of the arc ABC.

∴ l + 2r = 12.8 cm

⇒ l + 2 × 3.4 = 12.8

⇒ l = 12.8 − 6.8 = 6 cm

∴ A(P-ABC) = Area of the sector PABC = \[\frac{1}{2}lr = \frac{1}{2} \times 6 \times 3 . 4\] = 10.2 cm^{2 }Thus, A(P-ABC) is 10.2 cm^{2}.

Is there an error in this question or solution?

Advertisement

Advertisement

In the Given Figure, Radius of Circle is 3.4 Cm and Perimeter of Sector P-abc is 12.8 Cm . Find A(P-abc). Concept: Perimeter and Area of a Circle.

Advertisement