Скачать или смотреть Geometry Word Problem | Calculating Area of a Garden and a Pond Step-by-Step

Geometry Word Problem | Calculating Area of a Garden and a Pond Step-by-Step

Description:
Master area calculations! In this video, we help solve a real-world gardening problem: finding the space left for grass in a park that contains a circular pond. We'll break down the formulas for rectangles and circles to find the correct answers.

The Math Challenge:

Park: Rectangular, 28 meters long by 12 meters wide.

Pond: Circular, with a diameter of 7 meters.

Goal: Calculate the area of the pond, the total park area, and the remaining area to be planted with grass.

Step-by-Step Calculation:

1. Calculate the Total Park Area

Formula: Length * Width

Calculation: 28 m * 12 m = 336 m²

(Statement 3: "Luas taman tersebut adalah 336 m²" is CORRECT/Sesuai).

2. Calculate the Area of the Pond

Diameter: 7 m (Radius = 3.5 m)

Formula: π∗r
2
(using π=22/7)

Calculation: (22/7)∗3.5∗3.5=22∗0.5∗3.5=11∗3.5 = 38.5 m²

(Statement 1: "Luas kolamnya adalah 77 m²" is INCORRECT/Salah).

3. Calculate the Grass Area

Formula: Total Area - Pond Area

Calculation: 336 m² - 38.5 m² = 297.5 m²

(Statement 2: "Luas area yang akan ditanami rumput adalah 297,5 m²" is CORRECT/Sesuai).

Final Answer:
Statements 2 and 3 are correct!

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