10 Arrowline Enterprises is considering two possible logos:
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\caption{Fig. 10.1}
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Fig. 10.2
- Fig. 10.1 shows the first logo ABCD . It is symmetrical about AC .
Find the length of AB and hence find the area of this logo.
- Fig. 10.2 shows a circle with centre O and radius 12.6 cm . ST and RT are tangents to the circle and angle SOR is 1.82 radians. The shaded region shows the second logo.
Show that \(\mathrm { ST } = 16.2 \mathrm {~cm}\) to 3 significant figures.
Find the area and perimeter of this logo.