+168 
The white square is 5cm by 5 cm.
How do I work out the height of the triangle (the line the arrow is pointing to)?
Thanks
+9466 If the blue square is 3.8 cm by 3.8 cm ....
the area of the blue square = (3.8 cm)2 = 14.44 cm2
the area of the white square = (5 cm)2 = 25 cm2
the area of all four triangles = 25 cm2 - 14.44 cm2 = 10.56 cm2
The four triangles are congruent,so..
the area of one triangle = 10.56 cm2 / 4 = 2.64 cm2
(1/2) * 3.8 cm * height = 2.64 cm2
1.9 cm * height = 2.64 cm2
height = 2.64 / (1.9) cm
height ≈ 1.389 cm
+9466 If the blue square is 3.8 cm by 3.8 cm ....
the area of the blue square = (3.8 cm)2 = 14.44 cm2
the area of the white square = (5 cm)2 = 25 cm2
the area of all four triangles = 25 cm2 - 14.44 cm2 = 10.56 cm2
The four triangles are congruent,so..
the area of one triangle = 10.56 cm2 / 4 = 2.64 cm2
(1/2) * 3.8 cm * height = 2.64 cm2
1.9 cm * height = 2.64 cm2
height = 2.64 / (1.9) cm
height ≈ 1.389 cm
