Answer:
A) For 8 birdhouse, he will need 16 trapezoids.
Explanation:
Each birdhouse needs:
The following options are missing:
A) For 8 birdhouse, he will need 16 trapezoids.
B) For 12 birdhouses , he will need 16 rectangles
C) The ratio of trapezoids to squares is 1 to 2
D) The ratio of squares to triangles is 2 to 1
A) The following proportion must be satisfied:
1 birdhouse / 8 birdhouses = 2 trapezoids / x trapezoids
x = 2*8/1 = 16 trapezoids
Then, the A statement is true
B) The following proportion must be satisfied:
1 birdhouse / 12 birdhouses = 4 rectangles / x rectangles
x = 4*12/1 = 48 rectangles
Then, the B statement is false.
C) There are 2 trapezoids for every 1 square, then the ratio of trapezoids to squares is 2 to 1.
Then, the C statement is false.
D) There is 1 square for every 2 triangles, then the ratio of squares to triangles is 1 to 2.
Then, the D statement is false.