Questions

From Worst to Best

281 P5.PC.JM.17083127

Level 3
A rectangle measures 20 cm by 16 cm. Its length and breadth are both increased by 25%. Find the percentage increase in its area.

4 m

Attempt

282 P4.AP.JM.17100201

Level 3
A square of 1 cm is cut from each corner of a rectangle. What is the perimeter of the figure?

3 m

Attempt

Square Rectangle Rectilinear figure Composite figure perimeter

283 P5.AP.JM.17083173

Level 2
The figure is made up of two identical rectangles and a square. Find the perimeter of the figure.

3 m

Attempt

Square Rectangle Rectilinear figure Composite figure perimeter

284 P6.AP.TL.17090769

Level 3 PSLE
LOPQ is a rectangular cardboard with LQ = 7 cm. Two quarter circles have been cut from it as shown. The remaining cardboard, which is the shaded part, has an area of 56 cm². Using π = ²²₇, find the length of MN.

3 m

Video Attempt

Length Rectangle Quarter circle Composite figure perimeter

285 P5.PC.JM.17083126

Level 3
A rectangle is 25 cm long and 20 cm wide. Its length is now increased by 40% and its breadth is increased by 50%. Find the perimeter of the new rectangle.

4 m

Video Attempt

Percent change by Area Perimeter Rectangle

286 P4.AP.JM.17100164

Level 3
The figure is made up of rectangle ABGH and square CDEF. What is the total length of BC and GF?

3 m

Attempt

Length Square Rectangle Rectilinear figure Composite figure perimeter

287 P6.AN.NK.17052212

Level 3
A rectangular piece of paper is folded along the diagonal as shown in Figure B. It is folded again as shown in Figure C before the last fold in Figure D. If the angle is 62° in Figure D, what is ∠a?

3 m

Attempt

Rectangle Overlapping angles Folded figure

288 P5.PC.JM.17083113

Level 3
The length and the breadth of a rectangle are both decreased by 20%. By how many percentage will its area be decreased by?

4 m

Video Attempt

Percent change by Percent change Area Perimeter Rectangle

289 P6.AP.TL.17090791

Level 3
The figure, not drawn to scale, is made up of semicircles in a rectangle ABCD. XY is the common baseline for all the semi-circles.

Find the length of AB.
Using the calculator π, find the perimeter of the shaded parts. Give the answer correct to 2 decimal places.

3 m

Attempt

Length Rectangle Semicircle Composite figure perimeter D Place values D Round off

290 P4.AP.JM.17100178

Level 3
The figure is made up of rectangle RSTU and squares PQYX and WYUV. The length of PQ is equal to the length of RS. The length of PX is twice the length of UV. Find the length of QR.