Stage 9 - Q9 - 4 marks
19515
A circle of radius 7 cm contains an unshaded right triangle with perpendicular sides 5 cm and 6 cm. Find the exact shaded area.
\(a\)
\(b\)
\(r=7\text{ cm}\)
\(a=5\text{ cm},\quad b=6\text{ cm}\)
Hint
The triangle’s sloping side is not its perpendicular height.