A circle O is inscribed in square LWUA. If the area of the shaded region is (4π - 8)cm^2, find the perimeter of the square.
1. A circle O is inscribed in square LWUA. If the area of the shaded region is (4π - 8)cm^2, find the perimeter of the square.
Answer:
Let the side length of the square be x cm. Since the circle is inscribed in the square, the diameter of the circle is equal to the side length of the square, or x cm. The radius of the circle is therefore x/2 cm.
The area of the square is x^2 cm^2, and the area of the circle is π(x/2)^2 cm^2 = (π/4)x^2 cm^2.
The shaded region is the difference between the area of the square and the area of the circle, so (4π - 8) cm^2 = x^2 - (π/4)x^2.
Solving for x, we get:
(4π - 8) cm^2 = x^2 - (π/4)x^2
5π/4 cm^2 = x^2
x^2 = (5π/4) cm^2
x = √(5π/4) cm
The perimeter of the square is equal to the sum of all four sides, which is 4x cm. Substituting in our value for x, we get:
4x cm = 4(√(5π/4)) cm = 2√(5π) cm.
Thus, the perimeter of the square is 2√(5π) cm.
2. IV. ibigay ang kahulugan ng mga sumusunod na may kinalaman sa mga sektor ne ekonomiya. (10DUR"puntos)1. UNDP2. BAS3. PSA-4. LWUA-5. SSL-6. DOLE7. POEA8. NAPC-9. DSWD-10. HUDCC
Answer:
1) UNDP- UNITED NATIONS DEVELOPMENT PROGRAMME
2) BAS - BUREAU OF AGRICULTURAL STATISTICS
3) PSA - PHILIPPINE STATISTIC AUTHORITY
4) LWUA - LOCAL WATER UTILITIES ADMINISTRATION
5) SSL - SALARY STANDARDIZATION LAW
6) DOLE - DEPARTMENT OF LABOR AND EMPLOYMENT
7) POEA - PHILIPPINE OVERSEAS EMPLOYMENT ADMINISTRATION
8) NAPC - NATIONAL ANTI- POVERTY COMISSION
9) DSWD - DEPARTMENT OF SOCIAL WELFARE AND DEVELOPMENT
10) HUDCC - HOUSING AND URBAN DEVELOPMENT COORDINATING COUNCIL
Explanation:
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