Answer:
A) 27.7
B) 45
Explanation:
A) 6 + 9 + 6 + __ = 6.7
To find the other end of the triangle, you would use a² + b² = c².
As shown, one end of the triangle is 6. To find the next end of the triangle, subtract 9 - 6 = 3. So now solve 6² + 3² = c². 36 + 9 = 45. √45 = 6.7. Therefore, the perimeter of the shape is 6 + 9 + 6 + 6.7 = 27.7.
B) Area of the square + area of the triangle = total shape area
6 x 6 = 36 (The area of the square portion of the shape)
6 x 3 = 18 ÷ 2 = 9 (The area of the triangle is half of the area of a rectangle)
36 + 9 = 45