AREA PERIMETER

261 P6.AP.TL.17090742

Level 2
The figure is formed by 5 identical squares with 3 similar semi-circles cut out from it. Each square has a side of 14 cm. Find the perimeter of the shaded figure. Leave the answer in terms of π.

2 m

Attempt

262 P5.AP.NK.23012630

Level 2
Find the perimeter of the following figure.

2 m

Attempt

Rectilinear figure Composite figure perimeter

263 P4.AP.JM.17100140

Level 2
The figure is made up of a rectangle and a square. The area of the rectangle is thrice the area of the square. If the area of the square is 16 cm² and the breadth of the rectangle is 2 cm, find the length of the rectangle.

2 m

Attempt

Square Rectangle Rectilinear figure Composite figure area Length Times as many

264 P3.AP.JM.17102325

Level 2
The figure is made up of 4 identical rectangles and a square. What is the area of the figure?

2 m

Attempt

Square Rectangle Rectilinear figure Composite figure area

265 P6.AP.TL.17090736

Level 2
The figure is made up of a semicircle and an equilateral triangle. The diameter is 42 cm. Find its perimeter.

2 m

Attempt

Equilateral triangle Circumference Semicircle Composite figure perimeter

266 P5.AP.NK.23041219

Level 2
In the figure, ABCD and WXYZ are identical rectangles. The perimeter of each rectangle is 37 cm. The perimeter of the shaded rectangle WMCN is 22 cm. Find the perimeter of the figure ABMXYZND.

2 m

Attempt

Rectangle Rectilinear figure Composite figure perimeter

267 P3.AP.JM.17102365

Level 2
ABCD is a rectangle made up of three identical squares. The length of each side of the square is 5 m. What is the area of ABCD?

2 m

Attempt

Square Rectangle Composite figure area

268 P6.AP.TL.17090735

Level 2
The diagram shows a semicircle with a diameter of 21 cm. Quadrant CDB has the centre A. The line AB divides the quadrant equally into 2 parts. Find the perimeter of the shaded region. (Take π = ²²₇)

2 m

Attempt

Circumference Semicircle Quarter circle Composite figure perimeter

269 P4.AP.NK.23050829

Level 3
Find the area of the unshaded part.

2 m

Attempt

Rectangle Cut & paste

270 P3.AP.JM.17102345

Level 2
The figure is made up of 4 similar rectangles. Find the perimeter of the figure.

2 m

Attempt

Rectangle Rectilinear figure Composite figure perimeter

271 P6.AP.TL.17090744

Level 2 PSLE
Anna has a square piece of paper FGHJ of side 21 cm. She cut along the dotted lines shown in Figure 1 to get one small square of area 9 cm² and 8 identical right-angled triangles. Triangle KLM in Figure 2 is one such triangle. Find the length of KM.

2 m

Video Attempt

Length Square Square & square root Right-angled triangle Composite figure area

272 P6.AP.NK.21060418

Level 3 PSLE
Figure 1 is a trapezium with a perimeter of 18 cm. Figure 2 is made up of four such trapeziums. The perimeter of Figure 2 is 48 cm. What is the length of the side GH of the trapezium?

2 m

Attempt

Length Composite figure perimeter Trapezium

273 P3.AP.JM.17102332

Level 2
The figure is made up of 6 similar rectangles measuring 6 cm by 3 cm. What is the perimeter of the figure?

2 m

Attempt

Rectangle Rectilinear figure Composite figure perimeter

274 P5.AP.JM.17083217

Level 2
The figure shows a rectangle and two triangles. Find the shaded area.

2 m

Attempt

Rectangle Triangle Triangle common height Composite figure area

275 P3.AP.JM.17102361

Level 2
The figure is made up of 3 identical squares of side 6 cm. What is the perimeter of the figure?

2 m

Attempt

Square Rectilinear figure Composite figure perimeter

276 P5.AP.JM.17083218

Level 2
In the figure not drawn to scale, the area of Triangle X is ³₅ of the area of Triangle Y. Given that the area of Triangle ABC is 72 cm², Find the area of Triangle Y.