## 11.2.3 Perimeter and Area, PT3 Practice

Question 9: In diagram below, ADB is a right-angled triangle and DBFE is a square. C is the midpoint of DB and CH = CD. Calculate the area, in cm2, of the coloured region. Solution: Area of △ ABC = 1 2 ×6×8 =24  cm 2 Area of trapezium BCHF = 1 2 ×( 12+6 )×6 =54  cm 2 Area of CDEFH =( … Read more11.2.3 Perimeter and Area, PT3 Practice

## 11.2.2 Perimeter and Area, PT3 Practice

Question 5: In diagram below, PQUV is a square, QRTU is a rectangle and RST is an equilateral triangle. The perimeter of the whole diagram is 310 cm. Calculate the length, in cm, of PV. Solution: PV=VU=TS=SR=QP Given perimeter of the whole diagram=310 cm PV+VU+UT+TS+SR+RQ+QP=310 PV+PV+50+PV+PV+50+PV=310 5PV+100=310          5PV=210            PV=42 cm Question 6: In diagram below, ABCD and CGFE are rectangles. M, G, … Read more11.2.2 Perimeter and Area, PT3 Practice

## 11.2.1 Perimeter and Area, PT3 Practice

Question 1: In the diagram, ABCD is a trapezium and ABEF is a parallelogram. Calculate the area, in cm2, of the coloured region. Solution: Area of trapezium ABCD = 1 2 ×( 8+14 )×10 =110  cm 2 Area of parallelogram ABEF =8×6 =48  cm 2 Area of the shaded region =110−48 =62  cm 2 Question 2: Diagram below shows a rectangle ABCD. Calculate the area, … Read more11.2.1 Perimeter and Area, PT3 Practice