The figure shows a big square that is made up of a small square with area 100 cm
2 and 8 right-angled triangles with a base of 7 cm.
- Find the height of each triangle.
- Find the area of the big square.
(a)
Length of the small square
= √100
= 10 cm
Height of each triangle
= 10 + 7
= 17 cm
(b)
Length of the big square
= 17 + 7
= 24 cm
Area of the big square
= 24 x 24
= 576 cm
2 Answer(s): (a) 17 cm; (b) 576 cm
2