Question

piece of paper.
1. Manny painted a 4-sided figure inside a circle whose radius measures 30
cm. Each side of the 4-sided gure he painted measures 13 cm. What is the
figure that Manny painted? What is the area of the circle that is not paintede
2. The figure below is composed of a rectangle and a half circle. Find the
area of the figure. (Figure is not drawn to scale)
2cm
3 cm
2cm
9 cm
3. Calculate the shade remian She​

Answer 1

Question 1) :- Manny painted a 4-sided figure inside a circle whose radius measures 30 cm. Each side of the 4-sided gure he painted measures 13 cm. What is the

figure that Manny painted ? What is the area of the circle that is not painted ?

Answer :-

given that,

→ Radius of circle = 30 cm .

so,

→ Area of circle = πr² = 3.14 * 30 * 30 = 2826 cm² .

now,

→ Side of each figure = 13 cm .

so, manny painted the square figure .

also,

→ Area of figure = (side)² = (13)² = 169 cm² .

then,

→ Area of circle that is not painted = 2826 - 169 = 2657 cm² (Ans.)

Question 2) :- Refer to image .

→ Area of figure = Area of rectangle + Area of semi circle of diameter (9 - 3 - 2) cm .

→ Area of figure = 9 * 2 + (1/2) * 3.14 * 2 * 2

→ Area of figure = 18 + 3.14 * 2

→ Area of figure = 18 + 6.28

→ Area of figure = 24.28 cm² (Ans.)

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