Explanation:
The area of a triangle can be calculated using the formula:
Area = (base * height) / 2
For each triangle, the base is given as 20 meters and the height is given as 7 meters. Let's calculate the area of each triangle:
Area of each triangle = (20 * 7) / 2 = 140 / 2 = 70 m²
Therefore, the area of each triangle is 70 m².
Since the kite is broken into two triangles, the total area of the kite is the sum of the areas of both triangles:
Total area of the kite = 70 m² + 70 m² = 140 m²
Therefore, the total area of the kite is 140 m².
To summarize:
The area of each triangle is 70 m², and the total area of the kite is 140 m².
Hence, the correct answer for the area of each triangle is (b) 70, and the correct answer for the total area of the kite is (b) 140.